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what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | a fun neutralization reaction that you may have tried is the combination of baking soda—sodium bicarbonate , $ \text { nahco } _3 $ —and vinegar—mostly water with acetic acid , $ \text { ch } _3 \text { cooh } ( aq ) $ ) —which produces carbonic acid— $ \text { h } _2 \text { co } _3 $ —and sodium acetate— $ \text { na... | what is the name of the equations which produce salt water and carbon dioxide ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | neutralization reactions are a type of double replacement reaction that occurs between an acid and a base . the following is an example of a neutralization reaction : $ \blued { \text h } \text f ( aq ) +\text { na } \blued { \text { oh } } ( aq ) \rightarrow \blued { \text h_2 \text o } + \text { naf } ( aq ) $ $ acid... | this may be an obvious question but , what classifies a chemical as a salt ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | concept check : what is in our supernatant ? neutralization reactions are a type of double replacement reaction that occurs between an acid and a base . the following is an example of a neutralization reaction : $ \blued { \text h } \text f ( aq ) +\text { na } \blued { \text { oh } } ( aq ) \rightarrow \blued { \text ... | for example , when an acid-base neutralization reaction occurs and water and a salt is formed , what are the characteristics of the salt formed that makes it a salt ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | one example is the reaction between lead ( ii ) nitrate and potassium iodide . both compounds are white solids that can be dissolved in water to make clear , colorless solutions . when you combine the two clear solutions , you get the following reaction : $ \text { pb ( no } _3 ) _2 ( aq ) + 2\text { ki } ( aq ) \right... | are we assuming the charges would balance because it 's in water with an abundance of oxygen and hydrogen atoms ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | if we check our solubility rules , we see that barium sulfate is insoluble and should precipitate out of solution . that means our reaction is a precipitation reaction , too ! we can also include that information in our equation by adding the symbol $ \blued { ( s ) } $ after the $ \text { baso } _4 $ . | how do you know whether or not there will be no reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | we can fix this by multiplying $ \text { h } _2 \text o $ by $ \redd { 2 } $ to give our final , balanced molecular equation : $ \text { h } _2 \text { so } _4 ( aq ) + \text { ba } \text { ( oh ) } _2 ( aq ) \rightarrow \redd { 2 } \text { h } _2 \text o + \text { baso } _4 \blued { ( s ) } $ summary double replacemen... | when you 're predicting the products of the reactions , like in the example , how can you recognize that as double replacement and not synthesis or something else ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | what would have to be the situation in which there would be no possible reaction in a double displacement ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | we can fix this by multiplying $ \text { h } _2 \text o $ by $ \redd { 2 } $ to give our final , balanced molecular equation : $ \text { h } _2 \text { so } _4 ( aq ) + \text { ba } \text { ( oh ) } _2 ( aq ) \rightarrow \redd { 2 } \text { h } _2 \text o + \text { baso } _4 \blued { ( s ) } $ summary double replacemen... | how do you know when or if the many reactions will occur and when/if they will then decompose ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | precipitation reactions produce an insoluble product from two aqueous reactants , and you can identify a precipitation reaction using solubility rules . neutralization reactions occur when the reactants are an acid and a base , and neutralization reactions are usually favorable as long as the reaction involves a strong... | how do you know if something is an acid or base just from the formula ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | both compounds are white solids that can be dissolved in water to make clear , colorless solutions . when you combine the two clear solutions , you get the following reaction : $ \text { pb ( no } _3 ) _2 ( aq ) + 2\text { ki } ( aq ) \rightarrow 2\text { kno } _3 ( aq ) + \golde { \text { pbi } _2 } ( s ) $ we made a ... | ( or do you need to memorize these ) is everything that is soluble considered to be in aq state ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | if we check our solubility rules , we see that barium sulfate is insoluble and should precipitate out of solution . that means our reaction is a precipitation reaction , too ! we can also include that information in our equation by adding the symbol $ \blued { ( s ) } $ after the $ \text { baso } _4 $ . | how do you know what medium the reaction takes place in or what medium it needs ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | in this article we are only writing out the molecular equation , but you probably want to be familiar with writing the other forms of the equation as well . example : predicting and balancing a double replacement reaction let ’ s take a look at an example where we do n't know the products : $ { \text { h } _2 \text { s... | in the first example , how was it determined that barium and sodium are the cations ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | here is an example of a double replacement reaction : $ \greend { \text { bacl } _2 } ( aq ) +\maroond { \text { na } _2 \text { so } _4 } ( aq ) \rightarrow \greend { \text { ba } } \maroond { \text { so } _4 } ( s ) + 2\maroond { \text { na } } \greend { \text { cl } } ( aq ) $ in this example , the cations are $ \gr... | are cations always written before anions in a neutral compound ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | the hardest part of identifying a neutralization reaction is recognizing that you have an acid and a base for the reactants . once you know you have a neutralization reaction , you can generally predict the reaction will occur in the forward direction as long as you have a strong acid and/or a strong base as a reactant... | how do you know that fe has a 3+ charge ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | try it ! problem 1 problem 2 | it 's not in groups 1,2,13,14,15,16,17 , or 18 so how can we predict the charge without knowing it 's roman numeral ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | the solvent and soluble components of the reaction are called the supernatant or supernate . we can use solubility rules to predict whether a precipitation reaction will take place . the formation of a solid precipitate is the driving force that makes the reaction proceed in the forward direction . | what are the solubility rules ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | if a precipitation reaction did not swap all of its parts ( i.e , you have spectator ions ) , would it still be a double replacement reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | note that double replacement reactions can be written as molecular , complete ionic , or net ionic equations . in this article we are only writing out the molecular equation , but you probably want to be familiar with writing the other forms of the equation as well . example : predicting and balancing a double replacem... | how do you know , after balancing the equation , which product is going to be a solid and which will be a gas/liquid ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | both compounds are white solids that can be dissolved in water to make clear , colorless solutions . when you combine the two clear solutions , you get the following reaction : $ \text { pb ( no } _3 ) _2 ( aq ) + 2\text { ki } ( aq ) \rightarrow 2\text { kno } _3 ( aq ) + \golde { \text { pbi } _2 } ( s ) $ we made a ... | how is the formula : fecl3 ( aq ) + ba ( oh ) 2 ( aq ) -- > fe ( oh ) 3 ( s ) + bacl2 ( aq ) a precipitation reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | precipitation reactions and neutralization reactions are two common types of double replacement reactions . precipitation reactions produce an insoluble product from two aqueous reactants , and you can identify a precipitation reaction using solubility rules . neutralization reactions occur when the reactants are an ac... | does it only need to form an insoluble product from two aqueous reactants in order for it to be considered a precipitation reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | in this article we will be discussing precipitation reactions and neutralization reactions . a precipitation reaction is when two aqueous ionic compounds form a new ionic compound that is not soluble in water . one example is the reaction between lead ( ii ) nitrate and potassium iodide . both compounds are white solid... | if a solid reacts with a solution to produce two solutions , ( and assuming everything is a compound ) , will the reaction have happened ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | try it ! problem 1 problem 2 | for problem 1 according to the metal activity series fe can not replace ba as it is more reactive so no reaction will occur but why my answer is considered weong ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | what will be the superscript of the diatomic elements when it comes to double replacement reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | we can fix this by multiplying $ \text { h } _2 \text o $ by $ \redd { 2 } $ to give our final , balanced molecular equation : $ \text { h } _2 \text { so } _4 ( aq ) + \text { ba } \text { ( oh ) } _2 ( aq ) \rightarrow \redd { 2 } \text { h } _2 \text o + \text { baso } _4 \blued { ( s ) } $ summary double replacemen... | do double displacement reactions have oxidation numbers ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | how do you figure out if it oxidizes or reduces ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | how is the first problem a double replacement reaction and a precipitation reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | i 'm having trouble with understanding this question , `` in a double replacement reaction , formation of which of the following does not necessarily lead to a chemical change ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | the solvent and soluble components of the reaction are called the supernatant or supernate . we can use solubility rules to predict whether a precipitation reaction will take place . the formation of a solid precipitate is the driving force that makes the reaction proceed in the forward direction . | is there any link to the solubility rules ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | try it ! problem 1 problem 2 | in problem 1 , how do we know that fe ( oh ) 3 is a solid while bacl2 is aqueous ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | the solvent and soluble components of the reaction are called the supernatant or supernate . we can use solubility rules to predict whether a precipitation reaction will take place . the formation of a solid precipitate is the driving force that makes the reaction proceed in the forward direction . | what is the solubility rules ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | precipitation reactions and neutralization reactions are two common types of double replacement reactions . precipitation reactions produce an insoluble product from two aqueous reactants , and you can identify a precipitation reaction using solubility rules . neutralization reactions occur when the reactants are an ac... | my question is that in the reactants side valence if fe is 2 and in the product side the valency of february is 3 .why ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\text { b } ^- } + \maroond { \text { c } ... | what is activity series a and b ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | what is electropositive character of atom ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | if you have tried this reaction at home , you probably remember a lot of fizzing because the neutralization reaction is accompanied by a gas-producing reaction , where the carbonic acid decomposes into carbon dioxide gas—bubbles ! —and water . note that double replacement reactions can be written as molecular , complet... | how do you write the net ionic equation for a double replacement equation ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | whats the difference between single and double replacement ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | in real life , your reaction flask might look something like the picture below . the insoluble product compound is called the precipitate . the solvent and soluble components of the reaction are called the supernatant or supernate . we can use solubility rules to predict whether a precipitation reaction will take place... | our supernatant is everything that is not the precipitate , so it is made up of our solvent h2o and kno3 '' ... where is the h2o coming from ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | in a general double replacement reaction , how would you know whether to substitute for the anion or the cation ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | what 's the difference between a double decomposition reaction and a double displacement reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | if you have tried this reaction at home , you probably remember a lot of fizzing because the neutralization reaction is accompanied by a gas-producing reaction , where the carbonic acid decomposes into carbon dioxide gas—bubbles ! —and water . note that double replacement reactions can be written as molecular , complet... | why is the iron a cation with a +3 net positive charge ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | in this article we will be discussing precipitation reactions and neutralization reactions . a precipitation reaction is when two aqueous ionic compounds form a new ionic compound that is not soluble in water . one example is the reaction between lead ( ii ) nitrate and potassium iodide . | i remember that transition metals have variable charges when forming ionic compounds , so how do i determine its charge ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | in this article we will be discussing precipitation reactions and neutralization reactions . a precipitation reaction is when two aqueous ionic compounds form a new ionic compound that is not soluble in water . one example is the reaction between lead ( ii ) nitrate and potassium iodide . | how can we determine if a compound is soluble ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | my question - can you have a double replacement reaction if you have a solid as a reactant ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | how can one decide that when two reactants are given then there would be a double displacement reaction ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | when sodium carbonate reacts with calcium bicarbonate , will the double displacement reaction take place ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | do the reactants in a double displacement reaction have to be aqueous , or can they be solid , or liquid as well ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | in real life , and not in an equation , what do you actually need for a double displacement to occur ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . | for example , in combustion , you need oxygen , so in a double replacement , what do you need ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | swapping anions gives the products $ \text { h } _2 \text o $ and $ \text { baso } _4 $ : $ { \text { h } _2 \text { so } _4 } ( aq ) + { \text { ba } \text { ( oh ) } _2 } ( aq ) \rightarrow \text { h } _2 \text o + \text { baso } _4 $ we can see that our double replacement reaction is also a neutralization reaction s... | why sodium chloride and barium chloride produce different amounts of ions in a solution ? |
what is a double replacement reaction ? double replacement reactions—also called double displacement , exchange , or metathesis reactions—occur when parts of two ionic compounds are exchanged , making two new compounds . the overall pattern of a double replacement reaction looks like this : $ \greend { \text { a } ^+\t... | the solvent and soluble components of the reaction are called the supernatant or supernate . we can use solubility rules to predict whether a precipitation reaction will take place . the formation of a solid precipitate is the driving force that makes the reaction proceed in the forward direction . | what solubility rules is the article referring to ? |
what is polar form ? $ \goldd r ( \cos\purplec\theta+i\sin\purplec\theta ) $ the polar form of complex numbers emphasizes their graphical attributes : $ \goldd { \text { absolute value } } $ ( the distance of the number from the origin in the complex plane ) and $ \purplec { \text { angle } } $ ( the angle that the num... | practice set 2 : powers of complex numbers in polar form $ \begin { align } z_1 & amp ; =\goldd { r_1 } ( \cos\purplec { \theta_1 } +i\sin\purplec { \theta_1 } ) \ & amp ; \downarrow \ ( z_1 ) ^n & amp ; = ( \goldd { r_1 } ) ^n [ \cos ( n\cdot\purplec { \theta_1 } ) +i\sin ( n\cdot\purplec { \theta_1 } ) ] \end { align... | 1st question : why do we need to find the multiple of 60 degrees that is within the range ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | why was it so significant ? do you think the confrontation at lexington and concord made war with britain inevitable ? what role do you think spies might have played in shaping the course of the first military clash between the british army and the colonial militias ? | who made the first shot ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | the american revolutionary war had begun. $ ^3 $ what do you think ? in your opinion , was the battle of lexington really a battle ? why was it so significant ? | why was the battle of lexington so significant ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | why was it so significant ? do you think the confrontation at lexington and concord made war with britain inevitable ? what role do you think spies might have played in shaping the course of the first military clash between the british army and the colonial militias ? | who made the 1st shot ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the core of the continental army . growing tensions leading to the american revolution in february 1775 , british parliament declared that the colon... | how does a ragtag volunteer army in need of a shower somehow defeat a global superpower ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | why was it so significant ? do you think the confrontation at lexington and concord made war with britain inevitable ? what role do you think spies might have played in shaping the course of the first military clash between the british army and the colonial militias ? | do you think the confrontation at lexington and concord made war with britain inevitable ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | a skirmish ensued , during which eight militiamen were killed and only one british soldier wounded . after order was restored , the british soldiers began the march to concord , where militias from concord and the nearby town of lincoln were waiting . after the british found and destroyed rebel weapons caches , they sq... | how many british soldiers die in the battle of concord ? |
overview the battles of lexington and concord , fought on april 19 , 1775 , were the first military clashes of the american revolutionary war . the massachusetts militia routed the british army forces and were soon joined by militias from connecticut , new hampshire , and rhode island . these militias would become the ... | the american revolutionary war had begun. $ ^3 $ what do you think ? in your opinion , was the battle of lexington really a battle ? why was it so significant ? | who do you think fired the first shot at the battle of lexington and concord and why ? |
what is conditioning ? conditioning is a type of learning that links some sort of trigger or stimulus to a human behavior or response . when psychology was first starting as a field , scientists felt they couldn ’ t objectively describe what was going on in people ’ s heads . however , they could observe behaviors so t... | conditioning , both classical and operant , can be seen throughout our daily lives . insurance companies will charge you more if you keep getting into accidents ( negative punishment ) or give you congratulatory certificates for safer driving ( positive reinforcement ) . when driving , seeing flashing lights in your re... | is n't a company charging you more if you keep getting into accidents a positive punishment because something is being gained ? |
what is conditioning ? conditioning is a type of learning that links some sort of trigger or stimulus to a human behavior or response . when psychology was first starting as a field , scientists felt they couldn ’ t objectively describe what was going on in people ’ s heads . however , they could observe behaviors so t... | -punishment is a stimulus presented after an undesired behavior . positive or negative -positive means adding a new stimulus . -negative means removing an old stimulus . | why wouldnt driving safely and earning certificates be a positive punishment ( adding a reward after a `` desired '' action ) ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | the rosetta stone has been exhibited in the british museum since 1802 , with only one break . towards the end of the first world war , in 1917 , when the museum was concerned about heavy bombing in london , they moved it to safety along with other , portable , 'important ' objects . the rosetta stone spent the next two... | what was done to protect it during the much more serious bombing risks of the second world war ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . r. parkinson , cracking codes : the rosetta stone and decipherment ( london , the british museum press , 1999 ) . | if the rosetta stone had not been found are there any other later artefacts that may have been able to translate the hieroglyphics ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | g.a . hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . | in the early ptolemaic period , how were mouths often rendered on figures ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . r. parkinson , cracking codes : the rosetta stone and decipherment ( london , the british museum press , 1999 ) . | how were the engravings on the rosetta stone made ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | d.j . thompson , the ptolemies and egypt in andrew erkine ( ed . ) , a companion to the hellenistic world ( oxford , wiley-blackwell , 2003 ) , pp . | what are others peoples questions/answers about the whole `` fight with egypt and britten about who should own the stone '' ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | the discovery thomas young , an english physicist , was the first to show that some of the hieroglyphs on the rosetta stone wrote the sounds of a royal name , that of ptolemy . the french scholar jean-françois champollion then realized that hieroglyphs recorded the sound of the egyptian language and laid the foundation... | so the british and the french had `` decided '' who should have an ancient egyptian artifact not long after it was discovered ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | g.a . hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . | since this has become a common practice in the years to come , how is it that the country and the people of the site where it was discovered had no say in whether this monumental piece of history should stay right there where it belongs ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . r. parkinson , cracking codes : the rosetta stone and decipherment ( london , the british museum press , 1999 ) . | if the rosetta stone is worn down and the writing was small would n't it be hard to decipher ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | hieroglyphic writing died out in egypt in the fourth century c.e.. over time the knowledge of how to read hieroglyphs was lost , until the discovery of the rosetta stone in 1799 and its subsequent decipherment . the stone is a tablet of black rock called granodiorite . it is part of a larger inscribed stone that would ... | what are the languages inscribed in the rosseta stone ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | the end of hieroglyphics soon after the end of the fourth century c.e. , when hieroglyphs had gone out of use , the knowledge of how to read and write them disappeared . in the early years of the nineteenth century , some 1400 years later , scholars were able to use the greek inscription on this stone as the key to dec... | what did champollion use to decipher the stone ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . r. parkinson , cracking codes : the rosetta stone and decipherment ( london , the british museum press , 1999 ) . | how big is the rosetta stone ? |
the key to translating hieroglyphics the rosetta stone is one of the most important objects in the british museum as it holds the key to understanding egyptian hieroglyphs—a script made up of small pictures that was used originally in ancient egypt for religious texts . hieroglyphic writing died out in egypt in the fou... | hölbl , history of the ptolemaic empire ( london , routledge , 2000 ) . r. parkinson , the rosetta stone ( london , british museum press , 2005 ) . r. parkinson , cracking codes : the rosetta stone and decipherment ( london , the british museum press , 1999 ) . | how was the rosetta stone found and did they know what it was when they first found it ? |
overview towards the end of the abbasid caliphate , the formerly vast and united islamic empire became fragmented and decentralized . many different groups ruled areas previously held by the abbasids . religious institutions became more defined during this period as state power waned . trade contributed to the spread o... | after the fall of the abbasids , alternative social and political structures filled the vacuum . sufi religious institutions were one such alternative structure . sufi missionaries were responsible for many conversions in sub-saharan africa and in south and southeast asia . | can anyone tell me where the sufi tradition comes from ? |
on the beach , but in a suit it is a humorously discordant image : a man in a pinstriped suit sits on a deck chair at the beach , ignoring the overcast vista by reading a newspaper . the figure ’ s balding head and newspaper are the brightest highlights against the smooth , rippling surf . south african artist william ... | there is a performative quality to kentridge ’ s process , predicated by the spontaneity he fosters , his own appearances in the frame , and the film itself as a time-based record of his drawing process . the traces always remain kentridge ’ s drawings for his films are often regarded as palimpsests . a palimpset is th... | is there a source on the internet or links to kentridge 's films , such as tide table and monument ? |
what defines a great leader how military leaders treat their vanquished enemies conveys much of their character . in early modern europe , paintings of military victories usually followed a preconceived structure : the victorious commander appeared seated high on his horse , or on a throne , while the capitulating gene... | the dutch , on the left , appear disorganized , youthful , and few in number . this contrasts with the spanish troops located on the right , which are presented as a large , well-organized , and seasoned group . velázquez ’ s depiction of the spears , vertically rising over the horizon , has received much attention , t... | can you speak to the blank trompe l'oeil white card at the bottom right ? |
what defines a great leader how military leaders treat their vanquished enemies conveys much of their character . in early modern europe , paintings of military victories usually followed a preconceived structure : the victorious commander appeared seated high on his horse , or on a throne , while the capitulating gene... | thus the painting operates at multiple levels : it is a rhetorical exaltation of spanish national identity , a symbol of philip iv and his army , and a tribute to spinola , a personal friend of velázquez who had died a few years before the commission of the painting . essay by javier berzal additional resources : this ... | on this painting i noticed the dutch side seem very young , where is the older generation ? |
what defines a great leader how military leaders treat their vanquished enemies conveys much of their character . in early modern europe , paintings of military victories usually followed a preconceived structure : the victorious commander appeared seated high on his horse , or on a throne , while the capitulating gene... | the painting presents a humane encounter in the midst of the chaos and cruelty of war . but we should not think that there are no ulterior motives for the presentation of this seemingly virtuous moment . spinola , the spanish troops , and by extension philip iv , are presented as powerful and honorable . | when the defeated are on their knees in humility , do you think the victor has any pitty for his enemy ? |
what defines a great leader how military leaders treat their vanquished enemies conveys much of their character . in early modern europe , paintings of military victories usually followed a preconceived structure : the victorious commander appeared seated high on his horse , or on a throne , while the capitulating gene... | without blatant symbols , allegorical figures , or even idealized figures , the viewer is invited to encounter the scene as if they had been there . the painting presents a humane encounter in the midst of the chaos and cruelty of war . but we should not think that there are no ulterior motives for the presentation of ... | why did the war start ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | many trained in traditionally-female occupations such as nursing and teaching , while a few went into the professions to work as lawyers or architects . despite these gains , fewer women during this time period received college degrees overall because colleges limited female enrollment in order to make space for male v... | about the pamphlet subtitle - why are marketing assumptions ( which were mostly correct for the time ) worth noting ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . | veteran ' bit is exclusive , granted , but is there really more to it than simply targeting the overwhelmingly majority with a printed message that had to be cost-efficient ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | but the uneven distribution of its benefits would have ramifications for years to come . chief among these was the growing resentment of african americans to being shut out of schools , neighborhoods , and entire economic brackets as the postwar boom stopped at the color line . their frustration would soon erupt into t... | what do they mean by the economic brackets as the postwar boom stopped at the color line ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | many banks refused to loan money to blacks , federal guaranty or not . suburban neighborhoods often boasted of restrictive covenants that banned african american families from purchasing homes in their subdivisions . as more and more white families moved to the white-picket-fenced suburbs characteristic of 1950s americ... | in the third paragraph , how did home ownership effect the african american families 's lives ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . | on the poster , what does `` suit of civvies '' mean ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | hbcus were few and far between in the north , however , so black veterans above the mason-dixon line had even fewer opportunities to pursue higher education. $ ^2 $ furthermore , even though african americans were entitled , in principle , to the same loan guaranties as whites , they faced serious barriers to home owne... | why did many bank refused to loan money to blacks ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | the frustration of african american veterans barred from participating in the postwar economic boom became a major motivating factor in the civil rights movement . african americans , women , and the gi bill though the gi bill itself did not bar female or african american veterans from enjoying its benefits , discrimin... | why is the gi bill so important to some people and other people do n't care at all what so ever ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | hbcus were few and far between in the north , however , so black veterans above the mason-dixon line had even fewer opportunities to pursue higher education. $ ^2 $ furthermore , even though african americans were entitled , in principle , to the same loan guaranties as whites , they faced serious barriers to home owne... | why was their a big difference between blacks and whites ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | over 332,000 woman veterans were eligible for benefits . although only about 65,000 female veterans attended college at uncle sam 's expense , a higher percentage of them opted for university education ( as opposed to vocational training ) than men . this stemmed in part from the selectivity of the women 's branches of... | in the declaration of independence they say all men are created equal , why not honor that ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | the frustration of african american veterans barred from participating in the postwar economic boom became a major motivating factor in the civil rights movement . african americans , women , and the gi bill though the gi bill itself did not bar female or african american veterans from enjoying its benefits , discrimin... | how did the gi bill affect non black people of color ( and latinos ) ? |
overview african americans and women were entitled to the same benefits as white men under the gi bill , but often faced difficulty trying to claim their benefits due to discrimination . those who did manage to get benefits were often steered towards training for menial jobs . the frustration of african american vetera... | many trained in traditionally-female occupations such as nursing and teaching , while a few went into the professions to work as lawyers or architects . despite these gains , fewer women during this time period received college degrees overall because colleges limited female enrollment in order to make space for male v... | is it true , that in the last paragraph the `` gi bill was also key in creating the affluent american society of the 1950s and 1960s '' ? |
overview world war ii provided unprecedented opportunities for american women to enter into jobs that had never before been open to women , particularly in the defense industry . women faced challenges in overcoming cultural stereotypes against working women , as well as finding adequate childcare during working hours ... | keeping american women looking their best was believed to be important for morale . minority women faced particular difficulties during the world war ii era . african american women struggled to find jobs in the defense industry , and found that white women were often unwilling to work beside them when they did . | were it not for world war ii and all of the involvement of women in the military industrial complex , could it be argued , that women around the western world would have perhaps been relegated to certain allegedly `` female '' job types and occupations ? |
overview world war ii provided unprecedented opportunities for american women to enter into jobs that had never before been open to women , particularly in the defense industry . women faced challenges in overcoming cultural stereotypes against working women , as well as finding adequate childcare during working hours ... | this included thousands of women who were recruited to work on the manhattan project , developing the atomic bomb . minority women , like minority men , served in the war effort as well , though the navy did not allow black women into its ranks until 1944 . as the american military was still segregated for the majority... | were men okay with the idea of women flying an aircraft ? |
overview world war ii provided unprecedented opportunities for american women to enter into jobs that had never before been open to women , particularly in the defense industry . women faced challenges in overcoming cultural stereotypes against working women , as well as finding adequate childcare during working hours ... | rosie was tough yet feminine . to reassure men that the demands of war would not make women too masculine , some factories gave female employees lessons in how to apply makeup , and cosmetics were never rationed during the war . keeping american women looking their best was believed to be important for morale . | if america was at war , why couldn , t they ration cosmetics and melt the cases of makeup to make war weapons ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | $ i = \dfrac { v_ { in } } { \text r1 + \text r2 } = \dfrac { 12\ , \text v } { 1\ , \text k\omega + 3\ , \text k\omega } = \dfrac { 12\ , \text v } { 4\ , \text k\omega } = 3\ , \text { ma } $ now we know the current , so we can compute how much power is being dissipated by our voltage divider , $ p = i\ , v = 3\ , \t... | regarding problem # 3 in line 4 of the solution how do you go from -r2 ( r2x5/2 ) =30k to 3/2xr2=30k how would i know to do that ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | does the divider still work ? does our voltage divider story collapse ? resistor $ \text r_\text l $ acts as a load on the output of the voltage divider , meaning that it causes a current $ i_\text l $ to flow . | what is the difference between a 'voltage divider ' and a 'voltage regulator ' ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | increase the load resistance . or , redesign the voltage divider to have smaller $ \text { r1 } $ and $ \text { r2 } $ , ( at the cost of more power dissipated by the voltage divider ) . real-world resistor tolerance also impacts accuracy real-world resistors always have a $ \pm $ tolerance on their value . | if we put rl in the circuit , does that make any change to power dissipated by voltage divider ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | controlling error in a loaded voltage divider if your design requires the error to be significantly smaller , the load needs to be much larger than $ 10\times\text { r2 } $ , like an additional $ 10 { \times } $ or more . you can get an additional $ 10 { \times } $ two ways . increase the load resistance . | in problem 2 , how are we allowed to take the reciprocal of 1/10 to get 15v in ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | this means $ v_ { out } $ is always less than $ v_ { in } $ . input voltage $ v_ { in } $ is scaled down to $ v_ { out } $ by a fixed ratio determined by the resistor values . this is where the circuit gets its nickname : voltage divider . | how do you calculate the two resistor values ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . | also , since this arrangement is only used with small currents , would n't it be easier to use a single resistor in series to lower the input voltage ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . | can i use a variable resistor like a potentiometer in this circuit to create a variable voltage divider ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | increase the load resistance . or , redesign the voltage divider to have smaller $ \text { r1 } $ and $ \text { r2 } $ , ( at the cost of more power dissipated by the voltage divider ) . real-world resistor tolerance also impacts accuracy real-world resistors always have a $ \pm $ tolerance on their value . | in the first example , where it shows how to calculate the power dissipated by the voltage divider ... why was n't the 2nd voltage ( vout ) used ? |
a very common and useful series resistor circuit goes by the nickname voltage divider . we will work out how this circuit operates , and you will see where the nickname comes from . a voltage divider looks like this : our goal is to come up with an expression relating output $ v_ { out } $ to input $ v_ { in } $ . a go... | this holds when the output voltage is near the center of its range ( in the neighborhood of $ v_ { \text { in } } /2 $ ) . operating the voltage divider near its extremes if you design the voltage divider to operate near its extremes , with the output voltage close to $ 0 $ or $ v_ { \text { in } } $ , the percentage e... | if we are checking the power dissipated by the voltage divider then why do we use the input voltage ( 12v ) instead of the output voltage ( 9v ) ? |
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