Ques: Q: Hydrogen gas is generated by the reaction of nitric acid and what else? Read this paragraph and choose the correct option from the provided answers: E XA MP L E 1 7 Hydrogen gas is generated by the reaction of nitric acid and elemental iron. The gas is collected in an inverted 2.00 L container immersed in a pool of water at 22C. At the end of the collection, the partial pressure inside the container is 733 torr. How many moles of H2 gas were generated?. Choices: - gaseous iron - martian iron - carbon - elemental iron A:
Ans: elemental iron

Ques: Q: What happens to the volume of a gas as the kelvin temperature increases? Read this paragraph and choose the correct option from the provided answers: The volume of a gas increases as the Kelvin temperature increases. Choices: - it decreases - it drops - it continues - it increases A:
Ans: it increases

Ques: Q: Change in what equals the average net external force multiplied by the time this force acts? Read this paragraph and choose the correct option from the provided answers: p = F nett, we can see how the change in momentum equals the average net external force multiplied by the time this force acts. The quantity F net t is given the name impulse. Impulse is the same as the change in momentum. Impulse: Change in Momentum Change in momentum equals the average net external force multiplied by the time this force acts. Choices: - lag - height - rate - momentum A:
Ans: momentum

Ques: Q: What branch of physical science looks at how heat, work, and various forms of energy are related to one another? Read this paragraph and choose the correct option from the provided answers: Just as the burning of wood releases energy in the form of heat, many other chemical reactions also release heat. There are also chemical reactions, such as photosynthesis in plants, which absorb energy in the form of heat. The study of energy changes in chemical reactions is called thermochemistry . The broader term thermodynamics also looks at how heat, work, and various forms of energy are related to one another. In this lesson, we will study the difference between reactions that absorb versus release heat as well as how to measure this change in energy. Choices: - photosynthesis - frigidity - transformations - thermodynamics A:
Ans:
thermodynamics