virl39k
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11 items • Updated • 1
answer stringclasses 193
values | category stringclasses 1
value | qid stringlengths 8 77 | images images listlengths 1 1 | problem stringlengths 45 1.82k | id int64 56 38.9k |
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5 | (GradeSchool) Science | Processed-aa6c2453-d504-4917-8f4c-43106769f02b | <image>
How many leaves does the flower have? | 56 | |
No | (GradeSchool) Science | Processed-f1b548d3-1061-45c3-800d-47119e796dcb | <image>
Are there any flowers with less than 6 petals? | 73 | |
3 | (GradeSchool) Science | Processed-75a57396-5a35-4c09-a11e-4343e4a32a7b | <image>
How many leaves are attached to the stems? | 1,283 | |
3.73 | (GradeSchool) Science | Processed-95c74200-3028-407f-8dad-fac4ad4c28bd | <image>
If the wedge is used to lift the post by 1.61cm, what is the ratio of the horizontal movement to the vertical lift? | 1,552 | |
2 | (GradeSchool) Science | Processed-1e923fbe-bb0f-49cb-ac93-af51bad6532a | <image>
How many antennae does the butterfly have? | 2,644 | |
Acetone mixture | (GradeSchool) Science | Processed-ba696ea7-521a-420d-a10f-8e454bad8a11 | <image>
Which mixture has a temperature above the freezing point of water? | 3,074 | |
3 | (GradeSchool) Science | Processed-b9c378ea-896c-4f36-b887-d7770ea8fa70 | refer to the following information. An object of mass m is moving according to the graph above. Three students are actively discussing how the total displacement of the object could be calculated from the graph above.
Student #1: First, find the average velocity for the entire trip by finding the sum of the initial an... | 5,367 | |
-0.2 | (GradeSchool) Science | Processed-c79dec6c-5a21-4eb2-aa7b-4b8ccc3aa164 | An experiment with a 550-g dynamic cart produces the following position versus time graph. Use the duplicate graph below, along with calculations, to estimate the velocities at the clock readings of 5.0 s. (Final Answer is a value)
<image> | 5,368 | |
8.9 | (GradeSchool) Science | Processed-7f6231e8-e556-4a4f-bdfe-9d68c2415e41 | refer to the following information.
On October 14, 2012, Felix Baumgartner jumped from a helium balloon that had risen to the stratosphere, 39 km above the surface of planet Earth. The data table below displays a 28-second portion of the speed data from Felix Baumgartner's infamous jump.Calculate the magnitude of Feli... | 5,369 | |
8.5 | (GradeSchool) Science | Processed-dd6939c4-e1e7-4ebd-97a7-eb9baeaf22ed | refer to the following information.
A 10-kg box starts from rest and slides down an inclined plane for 2.0 s as shown in the diagram above. The coefficient of friction between the box and the inclined plane is 0.1. Calculate the force of friction on the box.
<image> | 5,370 | |
4.1 | (GradeSchool) Science | Processed-86150184-f73a-4ca7-adc4-d4dfe9d3559c | refer to the following information.
A 10-kg box starts from rest and slides down an inclined plane for 2.0 s as shown in the diagram above. The coefficient of friction between the box and the inclined plane is 0.1. Calculate the acceleration of the box. (Final Answer is a value)
<image> | 5,371 | |
8.1 | (GradeSchool) Science | Processed-60609bf5-02fd-45ec-8153-de79e3650abe | refer to the following information.
A 10-kg box starts from rest and slides down an inclined plane for 2.0 s as shown in the diagram above. The coefficient of friction between the box and the inclined plane is 0.1. Calculate the final velocity of the box and the distance that the box moves down the plane in the give... | 5,372 | |
5 | (GradeSchool) Science | Processed-d01330b6-9f46-4406-ada8-374361dac9f4 | refer to the following information.
The person in the diagram above pulls on the right end of the chain with a 30 N force. Assume that surface has negligible friction. Calculate the value of the acceleration of the box if the chain has a mass of 1.0 kg. (Final Answer is a value)
<image> | 5,373 | |
30 | (GradeSchool) Science | Processed-22e9e1f3-1998-4808-83ee-b8f9a24769ab | refer to the following information.
The diagram above shows a ball of mass m hanging from a rope in a truck on a planet with a gravitational acceleration of g. Determine the value of the angle $\theta$ when the acceleration of the truck has a magnitude $\frac{g}{\sqrt 3}$. (Final Answer is a value)
<image> | 5,374 | |
2 | (GradeSchool) Science | Processed-1c4cddd4-e707-4e0d-bc34-d1eabe42ecac | refer to the following information.
Three students are discussing a physics problem. They make three different claims about the trunk moving to the right at a constant velocity.
Student #1: "The value of tension force is greater than the value of the kinetic friction force because the trunk is moving to the right, ... | 5,375 | |
0.58 | (GradeSchool) Science | Processed-4188f728-c5f7-49e7-98ae-1992d57473ac | refer to the following information.
A box of mass m is placed on an incline plane of length ℓ on a planet with a gravitational acceleration of g. The box is initially at rest; the incline angle is slowly increased, and the box begins to break free when the angle reaches 30 degrees. At that angle, the box begins to acc... | 5,376 | |
72 | (GradeSchool) Science | Processed-ba7a8a02-7dba-4c50-9233-88ab2843a6d9 | refer to the following information.
The graph below shows the external force applied to a 15-kg object throughout a displacement of 8.0 m. How much work was done on the object throughout the 8.0-m displacement? (Final Answer is a value)
<image> | 5,377 | |
192 | (GradeSchool) Science | Processed-3bf21f50-f8eb-478b-ac2f-59aa225aedbe | refer to the following information.
The graph below shows the external force applied to a 15-kg object throughout a displacement of 8.0 m. If the object was initially moving with a velocity of +4.0 m/s (before the force was applied), calculate the object's kinetic energy after the work was done on it.
(Final Answer is... | 5,378 | |
1 | (GradeSchool) Science | Processed-7d70b28b-3ee8-41b5-8e84-b013e0d82fcd | <image>
As shown in the diagram above, two resting blocks (4.0 kg and 8.0 kg) have a massless spring (spring constant 2,400 N/m) compressed between them. Upon release from the spring, the 8.0 kg block moves to the right at 10.0 m/s on a frictionless surface.
Calculate the compression distance of the spring. (Final An... | 5,380 | |
30 | (GradeSchool) Science | Processed-67024f92-0e55-4a78-825b-7d6d52ba70e0 | As shown in the diagram above, two resting blocks (4.0 kg and 8.0 kg) have a massless spring (spring constant 2,400 N/m) compressed between them. Upon release from the spring, the 8.0 kg block moves to the right at 10.0 m/s on a frictionless surface.
Both blocks eventually fly off a 45-m tall cliff, each reaching a sp... | 5,381 | |
1.5 | (GradeSchool) Science | Processed-8fcffaaa-e0db-4797-a7bd-905b50038ef9 | <image>
A 6.0-kg block starts from rest at the top of a smooth, frictionless, 2.0-m tall track. When the block reaches a spring, the surface transitions to a rough surface with a coefficient of kinetic friction of 0.50. The box links to the spring, compressing it a maximum distance of 60.0 cm before oscillating back an... | 5,382 | |
4 | (GradeSchool) Science | Processed-5569897f-6b52-4f94-898c-3bfbe6de32ab | A 6.0-kg block starts from rest at the top of a smooth, frictionless, 2.0-m tall track. When the block reaches a spring, the surface transitions to a rough surface with a coefficient of kinetic friction of 0.50. The box links to the spring, compressing it a maximum distance of 60.0 cm before oscillating back and forth.... | 5,383 | |
6 | (GradeSchool) Science | Processed-2a26cab0-0651-4f73-b9cc-d78b5b2ddb31 | The carts with masses 2m and m are initially moving with a speed v on a low friction track as shown in the diagram. The carts are initially connected by a compressed, negligible-mass spring that is fixed to the more massive car. After the spring is released, the less massive cart moves to the right with a speed 2v. The... | 5,384 | |
0.2 | (GradeSchool) Science | Processed-5488e372-0c73-423e-91a6-ce88c8a30209 | A box slides on a frictionless surface at an initial speed vo and sticks to a resting box with twice the mass. Two identical springs with spring constant k attach the second box to a wall. If $m = 2\, \text{kg}$, $v_0 = 6\, \text{m/s}$, and $k = 300\, \text{N/m}$, calculate the oscillation amplitude of the mass-spring ... | 5,385 | |
20 | (GradeSchool) Science | Processed-44f5ed8e-d382-4e25-8355-fd5c8904787d | <image>
When a system is taken from state a to state b along the path acb shown in the figure below, 70 J of heat flows into the system, and the system does 30 J of work. When the system is returned from state b to state a along the curved path shown, 60 J of heat flows out of the system. Does the system perform work o... | 5,386 | |
50 | (GradeSchool) Science | Processed-6e345a42-affc-4ae2-b096-ef652d04c7be | <image>
When a system is taken from state a to state b along the path acb shown in the figure below, 70 J of heat flows into the system, and the system does 30 J of work. If the system does 10 J of work in transforming from state a to state b along path adb, does the system absorb or does it emit heat? How much heat is... | 5,387 | |
60 | (GradeSchool) Science | Processed-968d7f58-1e1c-4f14-b1e0-fd89689c6fb6 | Consider the following circuit, Determine the potential difference between points a and b. (Final Answer is a value)
<image> | 5,388 | |
30 | (GradeSchool) Science | Processed-bf090f2c-1ab8-4154-abfb-4ef2d9bda95d | Consider the following circuit, What is the equivalent resistance of the circuit? (Final Answer is a value)
<image> | 5,389 | |
2.8 | (GradeSchool) Science | Processed-a0957c3c-5220-487f-a958-0f38efdb221b | Two trials of a double-slit interference experiment are set up as follows. The slit separation is d = 0.50 mm, and the distance to the screen, L, is 4.0 m. What is the vertical separation on the screen (in mm) between the first-order maxima for red light (λ = 750 nm) and violet light (λ = 400 nm)? (Final Answer is a v... | 5,390 | |
44 | (GradeSchool) Science | Processed-7e3ffc6c-6f56-40bc-921e-5ba18bd01add | <image>
The circuit shown is built and the voltage source supplies voltage for 15 minutes before the battery is completely drained. Assume the voltage supplied by the battery is constant at 12 V until the battery is drained, after which the battery supplies 0 V. What is the equivalent resistance of the circuit? (Fina... | 5,391 | |
24 | (GradeSchool) Science | Processed-e58ccd6e-cb0c-47ab-9d4c-35dc263fc115 | The circuit shown is built and the voltage source supplies voltage for 15 minutes before the battery is completely drained. Assume the voltage supplied by the battery is constant at 12 V until the battery is drained, after which the battery supplies 0 V. Two students are discussing the apparatus. Student 1 says, "If th... | 5,392 | |
18 | (GradeSchool) Science | Processed-69b43ec8-5b1a-4bbf-97aa-28031b336bb1 | The above mass spectra is for the hypochlorite ion, ClO$^-$. Oxygen has only one stable isotope, which has a mass of 16 amu. How many neutrons does the most common isotope of chlorine have? (Final Answer is a value)
<image> | 5,393 | |
51.5 | (GradeSchool) Science | Processed-e65491c9-2bc1-475c-8999-74f1b4bd809c | <image>
The above mass spectra is for the hypochlorite ion, ClO$^-$. Oxygen has only one stable isotope, which has a mass of 16 amu. Using the spectra, calculate the average mass of a hypochlorite ion. (Final Answer is a value) | 5,394 | |
No | (GradeSchool) Science | Processed-bde07f9b-cb81-45b7-8dda-bb96fad6cb44 | The above mass spectra is for the hypochlorite ion, ClO$^-$. Oxygen has only one stable isotope, which has a mass of 16 amu. Does the negative charge on the ion affect the spectra? (Yes or No) (Final Answer is a value)
<image> | 5,395 | |
Left | (GradeSchool) Science | Processed-eb41304c-49bc-4b4c-bd82-78bb2d8dc50a | <image>
The acetyl ion has a formula of C$_2$H$_3$O$^-$ and two possible Lewis electron-dot diagram representations: Using formal charge, determine which (left or right) structure is the most likely correct structure. (Answer is a single word) | 5,396 | |
2.5 | (GradeSchool) Science | Processed-21b58d02-efac-41dd-9e9b-a8b979d09bee | <image>
The graph above shows the changes in pressure with changing temperature of gas samples of helium and argon confined in a closed 2-liter vessel. What is the total pressure of the two gases in the container at a temperature of 200 K? (Final Answer is a value) | 5,397 | |
0.959 | (GradeSchool) Science | Processed-9d25c69c-778f-4953-acd8-b7f9d36b8ade | A student performs an experiment in which a butane lighter is held underwater directly beneath a 100-mL graduated cylinder which has been filled with water as shown in the diagram below. The switch on the lighter is pressed, and butane gas is released into the graduated cylinder. The student's data table for this lab i... | 5,399 | |
-0.4 | (GradeSchool) Science | Processed-29815b2e-ba34-4854-8834-5495dfe77e9f | A student performs an experiment in which a bar of unknown metal M is placed in a solution with the formula MNO$_3$. The metal is then hooked up to a copper bar in a solution of CuSO$_4$ as shown below. A salt bridge that contains aqueous KCl links the cell together. The cell potential is found to be +0.74 V. Separatel... | 5,400 | |
$sp^2$ | (GradeSchool) Science | Processed-87ab6e8e-d139-4f6c-a2b5-a9c958689783 | The boiling points of three different compounds are listed below, along with their formulas. What is the hybridization around atom $C_2$ in the acetaldehyde molecule? (Answer is a hybridization)
<image> | 5,401 | |
0.94 | (GradeSchool) Science | Processed-74d9308b-f1bc-4814-bffe-a404faf1d685 | A galvanic cell is set up according to the following diagram. Calculate $E^{\circ}_{cell}$ (V). (Final Answer is a value)
<image> | 5,402 | |
4.47 | (GradeSchool) Science | Processed-3827565d-ea2c-44b0-a053-3b7241a49942 | A galvanic cell is set up according to the following diagram. The beaker of Sn(NO$_3$)$_2$ is disconnected from the cell, and the tin electrode is then connected to an outside source of current. Over the course of 10.0 minutes, 1.65 g of tin plates out onto the electrode. What is the amperage of the current source? (F... | 5,403 | |
271.5 | (GradeSchool) Science | Processed-43efc106-cc54-4ac4-8bd6-656cebdbf287 | 0.10 mol of solid gallium initially at room temperature is heated at a constant rate, and its temperature is tracked, leading to the above graph. The gallium continues to be heated until it fully boils. Assume ideal behavior for the gallium gas. The reaction described is the phase transition of gallium from liquid to g... | 5,404 | |
0.00162 | (GradeSchool) Science | Processed-5e8a4967-d2f6-49cb-8a31-b12f1ba75a1f | 5.00 g of PbCl$_2$ is added to 300 mL of water in a 400 mL beaker, which is then heated for 10 minutes. At the end of the heating period, some solid PbCl$_2$ is still present at the bottom of the beaker, and the solution is cooled to room temperature before being left out overnight. The next day, 100 mL of the saturate... | 5,405 | |
24 | (GradeSchool) Science | Processed-7b9ac0b5-78dd-41f3-b86e-271c1032e949 | <image>
A sample of liquid butane (C$_4$H$_{10}$) in a pressurized lighter is set up directly beneath an aluminum can, as show in the diagram above. The can contains 100.0 mL of water, and when the butane is ignited, the temperature of the water inside the can increases from 25.0°C to 82.3°C. The total mass of butane i... | 5,406 | |
-800 | (GradeSchool) Science | Processed-bd263016-7f59-40b2-be82-d74e41f1f00b | The standard free energy change, ΔG°, for the reaction above is –801 kJ/mol$_{rxn}$ at 298 K. Use the figure of bond dissociation energies to find ΔH° for the reaction in the figure. (Final Answer is a value)
<image> | 5,407 | |
30 | (GradeSchool) Science | Processed-d40b39c7-7771-4b64-98cf-046343d1d2bd | The standard free energy change, ΔG°, for the reaction above is –801 kJ/mol$_{rxn}$ at 298 K. How many grams of methane must react with excess oxygen in order to release 1500 kJ of heat? (Final Answer is a value)
<image> | 5,408 | |
289 | (GradeSchool) Science | Processed-24d7b6a8-d89b-465c-946c-305c0dd70f65 | Ammonia gas reacts with dinitrogen monoxide via the following reaction: 2NH$_3$ (g) + 3N$_2$O(g) → 4N$_2$ (g) + 3H$_2$O(g) The absolute entropy values for the varying substances are listed in the figure. Calculate the entropy value for the overall reaction. Several bond enthalpies are listed in below: The enthalpies of... | 5,409 | |
376 | (GradeSchool) Science | Processed-47365d0a-d4b9-44e0-839b-bca8ac817b99 | A student designs an experiment to determine the specific heat of aluminum. The student heats a piece of aluminum with a mass of 5.86 g to various temperatures, then drops it into a calorimeter containing 25.0 mL of water. The following data in the figure is gathered during one of the trials. Given that the specific he... | 5,410 | |
0.780 | (GradeSchool) Science | Processed-b03bbcfa-a48f-4910-9fea-d2b90701397e | A student designs an experiment to determine the specific heat of aluminum. The student heats a piece of aluminum with a mass of 5.86 g to various temperatures, then drops it into a calorimeter containing 25.0 mL of water. The following data in the figure is gathered during one of the trials. Calculate the specific hea... | 5,411 | |
13.3 | (GradeSchool) Science | Processed-c3858023-7347-498d-96dc-e6688e067bc0 | A student designs an experiment to determine the specific heat of aluminum. The student heats a piece of aluminum with a mass of 5.86 g to various temperatures, then drops it into a calorimeter containing 25.0 mL of water. The following data in the figure is gathered during one of the trials. If the accepted specific h... | 5,412 | |
10.34 | (GradeSchool) Science | Processed-74e3e304-ad35-407c-8d19-ea1e2be6ee43 | A student tests the conductivity of three different acid samples, each with a concentration of 0.10 M and a volume of 20.0 mL. The conductivity was recorded in microsiemens per centimeter in the figure. The HCl solution is then titrated with a 0.150 M solution of the weak base methylamine, CH$_3$NH$_2$ . (K$_b$ = 4.38 ... | 5,413 | |
1790 | (GradeSchool) Science | Processed-de88287a-38ae-47d5-a19a-6cfa787f2620 | Two electrodes are inserted into a solution of nickel (II) fluoride and a current of 2.20 A is run through them. A list of standard reduction potentials is in the figure. How long (in seconds) would it take to create 1.2 g of Ni(s) at the cathode? (Final Answer is a value)
<image> | 5,414 | |
1.2 | (GradeSchool) Science | Processed-85f6deb5-3c39-4948-aed6-487fb2f5e236 | A + 2B → 2C. The following results in the figure were obtained in experiments designed to study the rate of the reaction above. Calculate the value of the rate constant, k, for the reaction (in the unit of M$^{−1}$sec$^{−1}). (Final Answer is a value)
<image> | 5,415 | |
0.111 | (GradeSchool) Science | Processed-ed12908a-a41a-48c3-9d7d-726c6ff3c760 | <image>
2N$_2$O$_5$ (g) → 4NO$_2$ (g) + O$_2$ (g) The data in the figure below was gathered for the decomposition of N$_2$O$_5$ at 310 K via the equation above. What would the concentration of N$_2$O$_5$ in the unit of M be at t = 1500 s? (Final Answer is a value) | 5,416 | |
Beige | (GradeSchool) Science | Processed-36acadac-4d9c-412e-ae2f-80c930d0d787 | <image>
In a city in Australia there is a population of moths that live in the grass, rarely taking flight except for short journeys. There are two phenotypes for wing color: green and beige. The largest predator of moths are birds and bats that prey upon the moths as they rest upon blades of grass. Green moths fare be... | 5,417 | |
Yes | (GradeSchool) Science | Processed-06c6066d-f0f8-4c46-befd-926de00021e0 | In this Figure , the values above branches indicate bootstrapped confidence values. Branch lengths are proportional to percent similarity in viral envelope gene sequence. TBE: tick borne encephalitis; TSE: Turkish sheep encephalitis; GGE: Greek goat encephalitis; LI: louping ill virus; SSE: Spanish sheep encephalitis; ... | 5,418 | |
35 | (GradeSchool) Science | Processed-28400309-e9b2-403e-90d3-e3bb5bbd37c9 | Researchers were interested in the effect of temperature on the respiration rate of crickets. Three chambers were prepared and kept at three different temperatures. A cricket was placed in each chamber. The CO2 levels in the chamber were recorded at 0 minutes, 5 minutes, and 10 minutes to assess the changing levels of ... | 5,419 | |
Yes | (GradeSchool) Science | Processed-26846cf3-f578-4a89-91f5-4ecd6f003312 | In this fictional scenario, an enzyme was discovered in reptile feces, gertimtonase, that was believed to aid in digestion and water retention. Researchers wanted to know how the enzyme's activity level changed with varying temperature. The scientists took fecal samples of Russian tortoises that were living in varying ... | 5,420 | |
Increase | (GradeSchool) Science | Processed-8d67d6c3-da92-48a3-a6e0-7f2f81ff14d7 | Basking sharks, which can grow up to 10 m in length, have been recorded jumping out of the water as high and as fast as great white sharks. Marine biologists are unsure why they do this but have pointed to this phenomenon as evidence of how much we still have to learn about marine life. The sharks are speculated to jum... | 5,421 | |
Yes | (GradeSchool) Science | Processed-17d8bec1-8df1-43a1-a11b-d0fd7c6391ae | Photosynthesis is the process plants use to derive energy from sunlight and is associated with a cell's chloroplasts. The energy is used to produce carbohydrates from carbon dioxide and water. Photosynthesis involves light and dark phases. Figure 1 represents two initial steps associated with the light phase.
The ligh... | 5,422 | |
11 | (GradeSchool) Science | Processed-dbe34804-c40b-4fd6-be44-7f23cec87e47 | The pedigree shown in Figure 1, numbered by individual, tracks the instances of color blindness within the family. Squares are male, circles are female, and each half of a shape represents one of the two copies of the gene. Shading represents that the allele for color blindness is present.
Of the individuals with a "?"... | 5,423 | |
525 | (GradeSchool) Science | Processed-9296cbd9-7655-45df-937a-e488804bcd65 | The loss of water by evaporation from the leaf openings is known as transpiration. The transpiration rates of various plants are shown below.
How many liters of water per week are lost by a coconut palm? (Final Answer is a value)
<image> | 5,424 | |
0.12 | (GradeSchool) Science | Processed-0de6aec1-2d09-4bf4-a05d-9580dd996b5c | The following figure shows the transfer of energy through a forest community. According to the information in the figure, what is the proportion of energy entering the first trophic level that is passed to the second trophic level? Express your answer as a value between 0 and 1, rounded to the nearest hundredth. (Fina... | 5,425 | |
1.6 | (GradeSchool) Science | Processed-26204f4f-aa50-456f-b90f-8efdb14d9159 | The figure above shows the flow of energy in a community. What percent of the energy taken in by producers ends up in carnivores? Express your answer as a percent to the nearest tenth. (Final Answer is a value)
<image> | 5,426 | |
C | (GradeSchool) Science | Processed-be9cfc9a-46fe-4fd1-a4a1-7997a5f1768b | Five dialysis bags, made from a semipermeable membrane that is impermeable to glucose, were filled with various concentrations of glucose and placed in separate beakers containing 0.5 M glucose solution. The bags were weighed every 10 minutes and the percent change in mass for each bag was graphed.
Which line represent... | 5,427 | |
A | (GradeSchool) Science | Processed-c3d97bf7-b75d-41d2-995a-18650eb5c133 | Five dialysis bags, made from a semipermeable membrane that is impermeable to glucose, were filled with various concentrations of glucose and placed in separate beakers containing 0.5 M glucose solution. The bags were weighed every 10 minutes and the percent change in mass for each bag was graphed.
Which line represen... | 5,428 | |
carotene | (GradeSchool) Science | Processed-0da9c929-c71f-4ff8-bcd5-ffc347382cdd | A biologist uses paper chromatography to separate pigments obtained from chloroplasts. In this procedure, leaf extracts containing a mixture of pigments are streaked near the bottom edge of a strip of chromatography paper. Chromatography paper is made of cellulose, an organic, polar molecule. The paper is mounted so th... | 5,429 | |
Yes | (GradeSchool) Science | Processed-19ab20e3-bed3-47d0-b206-27b4e0d83ad4 | Long periods of studying or other kinds of stressful mental activity cause the buildup of adenosine molecules in brain tissue. Adenosine is a ligand that binds to a G protein-coupled receptor on brain cells, activating a G protein by replacing its bound GDP with a GTP. A subunit of the G protein then binds to and activ... | 5,430 | |
A | (GradeSchool) Science | Processed-697fed74-06c0-492f-84e8-7b5a456a3a75 | Oxygen is transported throughout the body by hemoglobin molecules within red blood cells. The blood types A, B, and O identify red blood cells distinguished by specific sugars attached to membrane-bound proteins. There are three alleles (A, B, and O), two of which (A and B) code for enzymes that attach a specific sugar... | 5,431 | |
1065 | (GradeSchool) Science | Processed-d47d4a84-31bb-410c-9c7b-8a0d77e7a33a | Oxygen is transported throughout the body by hemoglobin molecules within red blood cells. The blood types A, B, and O identify red blood cells distinguished by specific sugars attached to membrane-bound proteins. There are three alleles (A, B, and O), two of which (A and B) code for enzymes that attach a specific sugar... | 5,432 | |
liquid | (GradeSchool) Science | Processed-86e8bb12-c07f-414e-ad56-1873a98c57b2 | Questions refer to the graph below that plots the temperature of water as a function of heat energy absorbed.
1. What state of matter does the line labeled X represent? (Answer is a single word.)
<image> | 5,433 | |
Y | (GradeSchool) Science | Processed-5a2f0b36-a6bb-4bc5-93c7-a3dd2e981b3a | <image>
Questions refer to the graph below that plots the temperature of water as a function of heat energy absorbed.
What part of the graph represents the cooling effect of sweating? (Answer is a single letter.) | 5,434 | |
Yes | (GradeSchool) Science | Processed-a3ddde44-0968-4dc0-bfa8-2941b5cfc893 | Questions refer to the following figure showing the replicative cycle of an RNA retrovirus such as HIV, the AIDS virus.
Does 'procee I' in the provided figure indicates reverse transcriptase? (Yes or No)
<image> | 5,435 | |
Yes | (GradeSchool) Science | Processed-634d17a7-c4c9-4edc-9cfc-2431a7836570 | Questions refer to the following figure showing the replicative cycle of an RNA retrovirus such as HIV, the AIDS virus.
Is proteins and glycoproteins the products of the viral replication process following 'process IV' as illustrated in the figure? (Yes or No)
<image> | 5,436 | |
nucleus | (GradeSchool) Science | Processed-a6129926-d0df-4912-a046-460e1acfef88 | Questions refer to the following figure showing the replicative cycle of an RNA retrovirus such as HIV, the AIDS virus.
Where are viral genes transcribed into mRNA? (Answer is a single word.)
<image> | 5,437 | |
Yes | (GradeSchool) Science | Processed-89e68ef7-87f8-4ee5-bace-396bee810cca | Questions refer to the following figure that illustrates the evolution of nine species from a single ancestral species. Roman numerals I through V identify different areas of the figure.
Is stabilizing selection the factor that is responsible for evolution pattern indicated by area III? (Yes or No)
<image> | 5,438 | |
A | (GradeSchool) Science | Processed-ddc5ae09-875b-40d6-a7c9-830068d37185 | Questions refer to the following figure that illustrates the evolution of nine species from a single ancestral species. Roman numerals I through V identify different areas of the figure.
What evolutionary process is suggested by the pattern observed in the diagram if it represents the introduction of a single species t... | 5,439 | |
I | (GradeSchool) Science | Processed-e5f6b07d-252d-4290-9428-8a2fb9ddd34f | <image>
The enzymatic catalysis of a reaction essential in the production of dog saliva is mediated by the protein ARKKKK60491. ARKKKK60491 is a homodimer, with each subunit being 337 amino acids. Figure 1, below, indicates a modular structure of the homodimer. Three positions are indicated on the model. Position A is ... | 5,440 | |
No | (GradeSchool) Science | Processed-f271dc53-0fcb-457a-b80b-82b50cb68908 | The enzymatic catalysis of a reaction essential in the production of dog saliva is mediated by the protein ARKKKK60491. ARKKKK60491 is a homodimer, with each subunit being 337 amino acids. Figure 1, below, indicates a modular structure of the homodimer. Three positions are indicated on the model. Position A is the acti... | 5,441 | |
D | (GradeSchool) Science | Processed-fc05c494-cad4-4783-ad1a-ec974a81bfb9 | An experiment is performed to evaluate the amount of DNA present during a complete cell cycle. All of the cells were synced prior to the start of the experiment. During the experiment, a fluorescent chemical was applied to cells, which would fluoresce only when bound to DNA. The results of the experiment are shown abov... | 5,442 | |
S | (GradeSchool) Science | Processed-fb63f823-3c93-4ad3-a4bd-32888d9fd018 | The cell cycle is a series of events in the life of a dividing eukaryotic cell. It consists of four stages: G1, S, G2, and M. The duration of the cell cycle varies from one species to another and from one cell type to another. The G1 phase varies the most. For example, embryonic cells can pass through the G1 phase so q... | 5,443 | |
S | (GradeSchool) Science | Processed-d5a93a59-b05c-4c25-8877-6f62857e15b1 | Questions below refer to the following figures which show 5 species of insects that were discovered on a previously unknown island and were named as shown in the table. Proteomic analysis was performed on a highly conserved protein in the insects and the number of amino acid differences was calculated and included in t... | 5,444 | |
0.5 | (GradeSchool) Science | Processed-b3ff43ff-c26c-4db3-916a-814b1752c3b0 | Hemophilia is an X-linked disease associated with the inability to produce specific proteins in the blood-clotting pathway. In this Figure, the family members afflicted with the disease are shown with filled-in squares (male) or circles (females). A couple is trying to determine the likelihood of passing on the disease... | 5,445 | |
E | (GradeSchool) Science | Processed-0d77720e-f8bd-41da-b016-5576e570cc2a | A study was conducted to determine the effectiveness of varying amounts of vitamin C in reducing the number of common colds. A survey of 450 people provided the following information:
Is there evidence of a relationship between catching a cold and taking vitamin C?
A. The data prove that vitamin C reduces the number ... | 5,459 | |
B | (GradeSchool) Science | Processed-84901a50-9084-4ede-bbdb-9b69bd5d2709 | Based on the strength of the intermolecular forces in each substance, estimate from greatest to smallest the vapor pressures of each substance in liquid state at the same temperature.
A. propane > ethanal > ethene > methanol
B. ethene > propane > ethanal > methanol
C. ethanal > methanol > ethene > propane
D. methanol ... | 5,587 | |
D | (GradeSchool) Science | Processed-6c50ecfa-44ba-45f2-ad8d-e7902ea12ec4 | <image>
When in liquid state, which two substances are most likely to be miscible with water?
A. propane and ethene
B. methanol and propane
C. ethene and ethanal
D. methanol and ethanal | 5,588 | |
C | (GradeSchool) Science | Processed-890d78e1-e12b-41d5-a3ee-3844fb99692f | The graph below shows the amount of potential energy between two hydrogen atoms as the distance between them changes. At which point in the graph would a molecule of $H_2$ be the most stable?
A. Point A
B. Point B
C. Point C
D. Point D
<image> | 5,589 | |
D | (GradeSchool) Science | Processed-300b6d0a-036f-4983-8b97-029341d97fcf | The following diagram shows the relative atomic sizes of three different elements from the same period. Which of the following statements must be true?
A. The effective nuclear charge would be the greatest in element X.
B. The first ionization energy will be greatest in element X.
C. The electron shielding effect will... | 5,590 | |
C | (GradeSchool) Science | Processed-101f2f31-a62b-4f63-8007-4d72be22a06d | Two half-cells are set up as follows:
Half-Cell A: Strip of Cu(s) in $CuNO_3(aq)$
Half-Cell B: Strip of Zn(s) in $Zn(NO_3)_2(aq)$
When the cells are connected according to the following diagram, the following reaction occurs. Correctly identify the anode and cathode in this reaction as well as where oxidation and re... | 5,591 | |
B | (GradeSchool) Science | Processed-73b07a05-6bed-4073-9cd5-1f182d39132e | Two half-cells are set up as follows:
Half-Cell A: Strip of Cu(s) in $CuNO_3(aq)$
Half-Cell B: Strip of Zn(s) in $Zn(NO_3)_2(aq)$
When the cells are connected according to the following diagram, the following reaction occurs. How many moles of electrons must be transferred to create 127 g of copper?
A. 1 mole of el... | 5,592 | |
B | (GradeSchool) Science | Processed-1768525f-dc68-4bfc-884c-5c208d3ac51a | Two half-cells are set up as follows:
Half-Cell A: Strip of Cu(s) in $CuNO_3(aq)$
Half-Cell B: Strip of Zn(s) in $Zn(NO_3)_2(aq)$
When the cells are connected according to the following diagram, the following reaction occurs. If the $Cu^+ + e^- → Cu(s)$ half reaction has a standard reduction potential of +0.52 V, wh... | 5,593 | |
C | (GradeSchool) Science | Processed-1c360b13-dd7b-43fd-a88a-c29127b09d31 | Two half-cells are set up as follows:
Half-Cell A: Strip of Cu(s) in $CuNO_3(aq)$
Half-Cell B: Strip of Zn(s) in $Zn(NO_3)_2(aq)$
When the cells are connected according to the following diagram, the following reaction occurs. As the reaction progresses, what will happen to the overall voltage of the cell?
A. It wil... | 5,594 | |
A | (GradeSchool) Science | Processed-60769a5b-f2e4-4006-a1d6-6a202022d43a | Two half-cells are set up as follows:
Half-Cell A: Strip of Cu(s) in $CuNO_3(aq)$
Half-Cell B: Strip of Zn(s) in $Zn(NO_3)_2(aq)$
When the cells are connected according to the following diagram, the following reaction occurs. What will happen in the salt bridge as the reaction progresses?
A. The Na+ ions will flow ... | 5,595 | |
C | (GradeSchool) Science | Processed-0202598b-dc5c-4788-ad9a-33ef78e9365e | A solution of carbonic acid, $H_2CO_3$, is titrated with sodium hydroxide, NaOH. The following graph is produced. In addition to $OH^-$, what species are present in the solution during section III of the graph?
A. $H_2CO_3$, $HCO_3^-$, and $CO_3^{2-}$
B. $H_2CO_3$ and $HCO_3^-$
C. $HCO_3^-$ and $CO_3^{2-}$
D. $H_2CO_3... | 5,596 | |
C | (GradeSchool) Science | Processed-644e7629-b551-4796-acc2-ff1126801911 | A solution of carbonic acid, H2CO3, is titrated with sodium hydroxide, NaOH. The following graph is produced. What is the magnitude of the first dissociation constant?
A. 10e-2
B. 10e-4
C. 10e-6
D. 10e-8
<image> | 5,597 | |
C | (GradeSchool) Science | Processed-8b1aa80b-a115-4a86-9588-ba80379afa9e | A solution of carbonic acid, H2CO3, is titrated with sodium hydroxide, NaOH. The following graph is produced. If the concentration of the sodium hydroxide is increased prior to repeating the titration, what effect, if any, would that have on the graph?
A. The graph would not change at all.
B. The pH values at the equi... | 5,598 | |
B | (GradeSchool) Science | Processed-1926ae9c-d2f6-4314-ba8c-9ba2430d0810 | Two solutions of potassium carbonate and sodium chloride are mixed together, and the particulate representation below shows what is present after the reaction has gone to completion. Which of the two original solutions is the limiting reagent and why?
A. The potassium carbonate, because of the polyatomic anion
B. The ... | 5,599 | |
D | (GradeSchool) Science | Processed-126244cd-763a-4379-a7b2-550eca1ec589 | The structure of two oxoacids is shown below. Which would be a stronger acid, and why?
A. HOCl, because the H–O bond is weaker than in HOF as chlorine is larger than fluorine
B. HOCl, because the H–O bond is stronger than in HOF as chlorine has a higher electronegativity than fluorine
C. HOF, because the H–O bond is ... | 5,600 | |
A | (GradeSchool) Science | Processed-cfbaa227-7411-471b-b014-2b9d7c655934 | The following diagrams show the Lewis structures of four different molecules. Which molecule would travel the farthest in a paper chromatography experiment using a polar solvent?
A. Methanol
B. Pentane
C. Acetone
D. Ether
<image> | 5,601 | |
C | (GradeSchool) Science | Processed-5db4eae9-04c4-4139-bb59-f2c7ec944dc4 | Four different acids are added to beakers of water, and the following diagrams represent the species present in each solution at equilibrium. Which acid has the highest pH?
A. Acid 1
B. Acid 2
C. Acid 3
D. Acid 4
<image> | 5,602 |
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