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man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | what happens when there is a molecule that can not break the cohesive forces of water ? it ca n't penetrate and come into it . basically , what happens when that substance ca n't overcome the strong cohesive forces of water , ca n't get inside of the water ? that 's when we get what we call a hydrophobic substance , or... | why ca n't we make water in laboratories by combining hydrogen and oxygen ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | in order to do that , we 're going to have to start out with this . the world 's most popular molecule , or at least the world 's most memorized molecule . we all know about it . | what is a polar molecule ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | start out with the hydrogen bonds and you should put it in all caps and maybe some sparkles around it . one of the cool properties that results from these hydrogen bonds is a high cohesion for water which results in high surface tension . cohesion is the attraction between two like things , like attraction between one ... | do paper towels soak up water only because the adhesion is really high , or are there other properties why they can do that ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . there are more substances that can be dissolved in water than in any other liquid on earth . | in what is a `` solvent '' ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . at around 32 degrees fahrenheit or 0 degrees celsius if you 're a scientist or from a part of the world where things make sense , water molecules start t... | is there a root word for covalent bonds ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . that would be annoying . | given the partial positive charge on both hydrogen atoms in the water molecule would n't it makes sense for them repel each other and end with more energy efficient configuration of straight line bond configuration rather than v-shape which would have both of them bunched together ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . the surface tension created here causes the water to climb up the straw . | can anyone else explain more in depth what causes adhesion and cohesion ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these properties lead to one of my favorite things about water ; the fact that it can defy gravity . that really cool thing that just happened is called capillary action . explaining it can be easily done with what we now know about cohesion and adhesion . | what was capillary action again ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | this is actually the way that it appears . it is v-shaped . because this big old oxygen atom is a little bit more greedy for electrons , it has a slight negative charge ; whereas , this area here with the hydrogen atoms has a slight positive charge . | why is h2o is a v-shape bond ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | you do n't want to live on a world where ice sinks . not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . | how did life form in the first place ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . ( boppy music ) there have been a lot of e... | does that mean in conditions without gravity water would fill the straw completely , because there are no forces that can stop this process ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | it is v-shaped . because this big old oxygen atom is a little bit more greedy for electrons , it has a slight negative charge ; whereas , this area here with the hydrogen atoms has a slight positive charge . thanks to this polarity , all water molecules are attracted to one another ; so much so that they actually stick... | do negative charges in an atom occur when the atom has or requires more electrons ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thanks to adhesion , the water molecules are attracted to the molecules in the straw . as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . | are there any other molecules like water that expand when cooled ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . that would be annoying . | given that a floating block of ice displaces the same amount of surrounding liquid water as it does when melted , surely if the ice at the north pole sank , it would have to be denser than liquid water , thus having a smaller volume and ( the immediate effect ) would be for sea levels to fall ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | there are more substances that can be dissolved in water than in any other liquid on earth . yes , that includes the strongest acid that we have ever created . these substances that dissolve in water , sugar or salt being ones that we 're familiar with , are called hydrophilic , and they are hydrophilic because they ar... | at 4 ; 42 - what is the strongest acid ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | good old h20 . two hydrogens , one oxygen , the hydrogens each sharing an electron with oxygen in what we call a covalent bond . as you can see , i 've drawn my water molecule in a particular way . | in other words , why do the positive hydrogens not blow each other apart ( like charges repel ) to form a molecule in the shape of a straight line , where the two hydrogens are opposite from each other ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | it ca n't penetrate and come into it . basically , what happens when that substance ca n't overcome the strong cohesive forces of water , ca n't get inside of the water ? that 's when we get what we call a hydrophobic substance , or something that is fearful of water . | if water is made up of hydrogen and oxygen both of which are hight flamable , why ca n't you burn water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | what happens when there is a molecule that can not break the cohesive forces of water ? it ca n't penetrate and come into it . basically , what happens when that substance ca n't overcome the strong cohesive forces of water , ca n't get inside of the water ? that 's when we get what we call a hydrophobic substance , or... | how come very strong acids ca n't dissolve as many substances than water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | well , you can thank your hydrogen bonds once again . at around 32 degrees fahrenheit or 0 degrees celsius if you 're a scientist or from a part of the world where things make sense , water molecules start to solidify and the hydrogen bonds in those water molecules form crystalline structures that space molecules apart... | my question is , how did water come to form on earth ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . that would be annoying . | i mean the north pole has ice and it probably melted , i get that , but how did the north pole get all the ice ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | where exactly did water generate from ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | there are more substances that can be dissolved in water than in any other liquid on earth . yes , that includes the strongest acid that we have ever created . these substances that dissolve in water , sugar or salt being ones that we 're familiar with , are called hydrophilic , and they are hydrophilic because they ar... | what is the strongest acid that we have ever created that hank spoke of ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | why does a large boat float on water but a small stone does n't ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scientists and astronomers are always looking out into the universe trying to figure out whether there is life elsewhere because that is kind of the most important question that we have right now . they 're always getting really excited when they find water someplace , particularly liquid water . this is one reason why... | was water always on earth ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | one of the cool properties that results from these hydrogen bonds is a high cohesion for water which results in high surface tension . cohesion is the attraction between two like things , like attraction between one molecule of water and another molecule of water . water has the highest cohesion of any nonmetalic liqui... | does that mean the ionic bonds between the sodium chloride is broken by the polar attraction to the water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | what happens when there is a molecule that can not break the cohesive forces of water ? it ca n't penetrate and come into it . basically , what happens when that substance ca n't overcome the strong cohesive forces of water , ca n't get inside of the water ? that 's when we get what we call a hydrophobic substance , or... | since the ocean and sea temp set the stage for weather in many instances why ca n't we control the water temp when a storm gets closer to shores to dissipate the storm ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scientists and astronomers are always looking out into the universe trying to figure out whether there is life elsewhere because that is kind of the most important question that we have right now . they 're always getting really excited when they find water someplace , particularly liquid water . this is one reason why... | why does water always make people think that water is blue but it is actually clear ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | why are water sometimes greenish blue in oceans , seas , and lagoons ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . the surface tension created here causes the water to climb up the straw . | what is cohesion and adhesion ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | why does water expand when cooled ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | it floats ! yeah , i know you 're not surprised by this , but you should be because everything else , when it 's solid is much more dense than when it 's liquid ; just like gases are much less dense than liquids are . but that simple characteristic of water that its solid form floats is one of the reasons why life on t... | why when other things are solid they are more dense ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | why does water evaporate when the sun shines down on it ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why ? why do we think that water is necessary for life ? why does water on other planets get us so freaking excited ? | why is water necessary for life ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | if ice were denser than water it would freeze and then sink , and then freeze and then sink , and then freeze and then sink , so just trust me on this one . you do n't want to live on a world where ice sinks . not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth ... | why does ice crack when it goes to a fast temperature change ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | are there any living organisms on earth that do n't need water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | since water adheres weakly to the wax paper or to the plant , but strongly to itself , the water molecules are holding those droplets together in a configuration that creates the least amount of surface area . this is high surface tension that allows some bugs and even i think one lizard and also one jesus to be able t... | which lizard can walk on water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | but that simple characteristic of water that its solid form floats is one of the reasons why life on this planet , as we know it , is possible . why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . | felicia ( ntcc ) why does water dissolve almost everything ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | since water adheres weakly to the wax paper or to the plant , but strongly to itself , the water molecules are holding those droplets together in a configuration that creates the least amount of surface area . this is high surface tension that allows some bugs and even i think one lizard and also one jesus to be able t... | how do several bugs and a lizard manipulate the surface of water to be able to walk across it without sinking ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | but that simple characteristic of water that its solid form floats is one of the reasons why life on this planet , as we know it , is possible . why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . | ( ) why do hydrogen bonds cause the solid ice to be less dense than the liquid water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | but that simple characteristic of water that its solid form floats is one of the reasons why life on this planet , as we know it , is possible . why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . at aroun... | do all compounds that have hydrogen bonds have their solids be less dense then their liquid counterparts ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | you can see this if you put some water on some wax paper or some teflon or something where the water beads up like this . some leaves of plants do it really well ; it 's quite cool . since water adheres weakly to the wax paper or to the plant , but strongly to itself , the water molecules are holding those droplets tog... | 3. how did plants form ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | when you get one of these polar substances in water , it 's strong enough that it breaks all the little cohesive forces , all those little hydrogen bonds . instead of hydrogen bonding to each other , the water will hydrogen bond around these polar substances . table salt is ionic , and right now it 's being separated i... | why is it that the two hydrogen atoms bond with oxygen in a 'v ' shape , rather than bonding on opposite sides and forming a straight line ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | it is v-shaped . because this big old oxygen atom is a little bit more greedy for electrons , it has a slight negative charge ; whereas , this area here with the hydrogen atoms has a slight positive charge . thanks to this polarity , all water molecules are attracted to one another ; so much so that they actually stick... | when the first atom bonds , would n't it have a slightly +ve charge on the hydrogen side , forcing the second hydrogen atom to the opposite side of the oxygen atom , rather than one of the adjacent sides ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why is it so hot in here ? heat capacity ! yes , water has a very high heat capacity and probably that means nothing to you . basically it means that water is really good at holding on to heat , which is why we like to put hot water bottles in our bed and cuddle with them when we 're lonely . | can someone explain water 's high latent heat of evaporation ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . that would be annoying . | what would happen if ice never melts ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | when i take water in a jug from a bucket full of water wo n't this h-bond be disturbed ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | the cohesive force of water does have its limits , of course . there are other substances that water quite likes to stick to . take glass , for example . | what are some hydrophobic substances ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | but that simple characteristic of water that its solid form floats is one of the reasons why life on this planet , as we know it , is possible . why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . | what is the exact definition of being wet ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | - > a tissue being wet by water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these properties lead to one of my favorite things about water ; the fact that it can defy gravity . that really cool thing that just happened is called capillary action . explaining it can be easily done with what we now know about cohesion and adhesion . | what is a capillary action ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | it 's an amazing solvent . there are more substances that can be dissolved in water than in any other liquid on earth . yes , that includes the strongest acid that we have ever created . these substances that dissolve in water , sugar or salt being ones that we 're familiar with , are called hydrophilic , and they are ... | what 's the greatest acid on earth ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | so how much of earth 's water might have been brought in by astroids ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | could n't earth have made its own bodies of water through its chemical interactions ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . at around 32 degrees fahrenheit or 0 degrees celsius if you 're a scientist or from a part of the world where things make sense , water molecules start t... | do the hydrogen bonds work only at molecular levels or do they also affect larger scales of water as well ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | good old h20 . two hydrogens , one oxygen , the hydrogens each sharing an electron with oxygen in what we call a covalent bond . as you can see , i 've drawn my water molecule in a particular way . | how did oxygen form on the earth ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | will our descendants not have water to drink ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | basically , what happens when that substance ca n't overcome the strong cohesive forces of water , ca n't get inside of the water ? that 's when we get what we call a hydrophobic substance , or something that is fearful of water . these molecules lack charged poles . | why do people sound so sure about something that they have no proof on ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thanks to this polarity , all water molecules are attracted to one another ; so much so that they actually stick together and these are called hydrogen bonds . we talked about them last time , but essentially what happens is that the positive pole around those hydrogen atoms bonds to the negative pole around the oxygen... | how did hydrogen atoms and oxygen atoms come to be ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | where did the first water come from ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | is hot water heavier than cold water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | one of the cool properties that results from these hydrogen bonds is a high cohesion for water which results in high surface tension . cohesion is the attraction between two like things , like attraction between one molecule of water and another molecule of water . water has the highest cohesion of any nonmetalic liqui... | is it like how earth got its water ; from the comets source of water impacting it ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | one of the cool properties that results from these hydrogen bonds is a high cohesion for water which results in high surface tension . cohesion is the attraction between two like things , like attraction between one molecule of water and another molecule of water . water has the highest cohesion of any nonmetalic liqui... | what would life be like without water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why do we think that water is necessary for life ? why does water on other planets get us so freaking excited ? let 's start out by investigating some of the amazing properties of water . | so , why does the scientific community get so excited about the possibility of finding water on mars ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | does n't a type of spider/insect walk on water too ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | can water be in a plasma state ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | is a hydrophobic substance pushed out of water by the cohesive forces because it 's non polar ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why is it so hot in here ? heat capacity ! yes , water has a very high heat capacity and probably that means nothing to you . | what is the latent heat of vaporization and is it another property of water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | how fast does a water bubble rise to the surface ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . at around 32 degrees fahrenheit or 0 degrees celsius if you 're a scientist or from a part of the world where things make sense , water molecules start t... | do hydrogen bonds occur anywhere else ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scientists and astronomers are always looking out into the universe trying to figure out whether there is life elsewhere because that is kind of the most important question that we have right now . they 're always getting really excited when they find water someplace , particularly liquid water . this is one reason why... | does water really turn into a gas ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | good old h20 . two hydrogens , one oxygen , the hydrogens each sharing an electron with oxygen in what we call a covalent bond . as you can see , i 've drawn my water molecule in a particular way . | what is a covalent bond , and what is its significance to h*2o ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | if water is the universal solvent , how many substances can it dissolve ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | if ice were denser than water it would freeze and then sink , and then freeze and then sink , and then freeze and then sink , so just trust me on this one . you do n't want to live on a world where ice sinks . not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth ... | does n't ice cubes have air too ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thanks to adhesion , the water molecules are attracted to the molecules in the straw . as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . | i get that adhesion will cause water molecules to cling to the walls of a tube , and that cohesion will cause more water molecules to enter the tube , so wo n't cohesion itself be the cause of water moving upwards ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | good old h20 . two hydrogens , one oxygen , the hydrogens each sharing an electron with oxygen in what we call a covalent bond . as you can see , i 've drawn my water molecule in a particular way . | what would happen if there was two oxygen and one hydrogen ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . that would be annoying . | would the water be gas ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thanks to adhesion , the water molecules are attracted to the molecules in the straw . as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . | so every time you have a glass of water that is just water molecules bonded to each other ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . the surface tension created here causes the water to climb up the straw . | could we measure the power of the force of adhesion/cohesion in newtons ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | when you get one of these polar substances in water , it 's strong enough that it breaks all the little cohesive forces , all those little hydrogen bonds . instead of hydrogen bonding to each other , the water will hydrogen bond around these polar substances . table salt is ionic , and right now it 's being separated i... | why is the bonding between o and h called hydrogen bonding , although even oxygen is involved ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | when you get one of these polar substances in water , it 's strong enough that it breaks all the little cohesive forces , all those little hydrogen bonds . instead of hydrogen bonding to each other , the water will hydrogen bond around these polar substances . table salt is ionic , and right now it 's being separated i... | and 5 , even when the bond between o and h breaks , and they bond to other substances , why is it still called hydrogen bond ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thanks to adhesion , the water molecules are attracted to the molecules in the straw . as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . | so if water gets denser as it gets colder and cold water sinks , does the denser state affect how hard it is for a fish living deep in the ocean to swim through the water since the molecules are closer together ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scientists and astronomers are always looking out into the universe trying to figure out whether there is life elsewhere because that is kind of the most important question that we have right now . they 're always getting really excited when they find water someplace , particularly liquid water . this is one reason why... | what destroyed mars atmosphere , and also what happened to all the water on mars ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thank you cohesion . the surface tension created here causes the water to climb up the straw . it will continue to climb until eventually gravity pulling down on the weight of the water in the straw overpowers the surface tension . the fact that water 's a polar molecule also makes it really good at dissolving things ,... | hank says surface tension will continue to cause water to climb up the straw until gravity overpowers it ; if this was done in a place without gravity ( or much of it ) , would the water climb until it fills the entire straw ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | not only would it totally wreak havoc on aquatic eco systems which are basically how life formed on the earth in the first place . also , all the ice in the north pole would sink and then all of the water everywhere else would rise and we would n't have any land . that would be annoying . there 's one more amazing prop... | how would the gypsum deposit form in the way the rover found it ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | why is it so hot in here ? heat capacity ! yes , water has a very high heat capacity and probably that means nothing to you . | regarding heat capacity -- is it possible that the atmosphere could be medium-strongly affected by global warming ( along with the stuff on surface ) but that the oceans will resist and maintain a certain degree of equilibrium ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | why does hot water seems to freeze faster than cold water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | should n't the cold water freeze faster than the hot water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | there are more substances that can be dissolved in water than in any other liquid on earth . yes , that includes the strongest acid that we have ever created . these substances that dissolve in water , sugar or salt being ones that we 're familiar with , are called hydrophilic , and they are hydrophilic because they ar... | what is the strongest acid we 've created ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | one of the cool properties that results from these hydrogen bonds is a high cohesion for water which results in high surface tension . cohesion is the attraction between two like things , like attraction between one molecule of water and another molecule of water . water has the highest cohesion of any nonmetalic liqui... | what does the crystalline structure of ice look like ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | this is actually the way that it appears . it is v-shaped . because this big old oxygen atom is a little bit more greedy for electrons , it has a slight negative charge ; whereas , this area here with the hydrogen atoms has a slight positive charge . | i know water is v-shaped , but what does it look like in 3-d ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | but most of the covalent compound which are non-polar are not soluble in water but in stuff like ccl4 and other non polar solvents , and as there are like a million more covalent compounds than ionic ones , why is water still called the universal solvent , as there are solvents which dissolve more compounds than water ... |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . | at the very beginning of the video hank says `` crash course hq '' what does hq mean ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | but that simple characteristic of water that its solid form floats is one of the reasons why life on this planet , as we know it , is possible . why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . | why is water that dense ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | thanks to adhesion , the water molecules are attracted to the molecules in the straw . as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . | i am curious i was taught that as substance 's temperatures decreased their molecules contracted , why does water expand ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | it is v-shaped . because this big old oxygen atom is a little bit more greedy for electrons , it has a slight negative charge ; whereas , this area here with the hydrogen atoms has a slight positive charge . thanks to this polarity , all water molecules are attracted to one another ; so much so that they actually stick... | is it possible to form a liquid in which the molecules are like water , but with slight modifications such as slightly more negative charge on the oxygen atom or less charge ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | why was the water it was showing dark blue ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | as the water molecules adhere to the straw , other molecules are drawn in by cohesion following those fellow water molecules . thank you cohesion . the surface tension created here causes the water to climb up the straw . | is adhesion and cohesion the same as hydrophilic and hydrophobic ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | these molecules lack charged poles . they are non-polar and are not dissolving in water because essentially they 're being pushed out of the water by water 's cohesive forces . water , we may call it the universal solvent , but that does not mean that it dissolves everything . | why is the water blue instead of clear ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | but that simple characteristic of water that its solid form floats is one of the reasons why life on this planet , as we know it , is possible . why is it that solid water is less dense than liquid water while everything else is the exact opposite of that ? well , you can thank your hydrogen bonds once again . | are most hydrophobic bonds , less dense than water ? |
man in glasses : hello , there . here at crash course hq we like to start out each day with a nice healthy dose of water in all its 3 forms . it 's the only substance on all of our planet earth that occurs naturally in solid , liquid and gas forms . to celebrate this magical bond between two hydrogen atoms and one oxyg... | scratch that . water is n't a good solvent . it 's an amazing solvent . | how come water is so crucial to sustain life are n't there other liquids that fit the bill ? |
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