Answer the following question given this paragraph: As you know, density is defined as the mass per unit volume of a substance. Since gases all occupy the same volume on a per mole basis, the density of a particular gas is dependent on its molar mass. A gas with a small molar mass will have a lower density than a gas with a large molar mass. Gas densities are typically reported in g/L. Gas density can be calculated from molar mass and molar volume. Q: What is defined as the mass per unit volume of a substance? Choices: - weight - diameter - height - density A:
density
Answer the following question given this paragraph: The solution is basic and so its pH is greater than 7. The reported pH is rounded to two decimal places because the original mass and volume has two significant figures. Q: What level is greater than 7 in a basic solution? Choices: - fh - gh - uh - ph A:
ph
Q: Answer the following question given this paragraph: All of the planets rotate on their axes in the same direction that they move around the Sun. Except for Uranus. Uranus is tilted on its side. Its axis is almost parallel to its orbit. So Uranus rolls along like a bowling ball as it revolves around the Sun. How did Uranus get this way? Scientists think that the planet was struck and knocked over by another planet-sized object. This collision probably took place billions of years ago. Q: All of the planets rotate on their axes in the same direction that they move around the sun, except for which one? Choices: - Jupiter - venus - Saturn - uranus A:
A: uranus
Question: Answer the following question given this paragraph: As shown in Figure below , transcription is controlled by regulatory proteins . The proteins bind to regions of DNA, called regulatory elements , which are located near promoters. After regulatory proteins bind to regulatory elements, they can interact with RNA polymerase, the enzyme that transcribes DNA to mRNA. Regulatory proteins are typically either activators or repressors. Q: Dna transcription is controlled by what type of proteins? Choices: - essential - digested - genetic - regulatory A:
Answer: regulatory
*Question*
Answer the following question given this paragraph: How the Work-Energy Theorem Applies Now let us consider what form the work-energy theorem takes when both conservative and nonconservative forces act. We will see that the work done by nonconservative forces equals the change in the mechanical energy of a system. As noted in Kinetic Energy and the Work-Energy Theorem, the work-energy theorem states that the net work on a system equals the change in its kinetic energy, or W net = KE . The net work is the sum of the work by nonconservative forces plus the work by conservative forces. That is,. Q: The work-energy theorem states that the net work on a system equals the change in what type of energy? Choices: - binary energy - new energy - residual energy - kinetic energy A:
**Answer**
kinetic energy
*Question*
Answer the following question given this paragraph: water. Sulfur, critical to the 3D folding of proteins (as in disulfide binding), is released into the atmosphere by the burning of fossil fuels, such as coal. The cycling of these elements is interconnected. For example, the movement of water is critical for the leaching of nitrogen and phosphate into rivers, lakes, and oceans. Furthermore, the ocean itself is a major reservoir for carbon. Thus, mineral nutrients are cycled, either rapidly or slowly, through the entire biosphere, from one living organism to another, and between the biotic and abiotic world. Q: What element is released into the atmosphere by the burning of fossil fuels? Choices: - carbon - helium - oxygen - sulfur A:
**Answer**
sulfur