Question

1. a substance is poured from one container to another, but the shape does not change. what state is it in? a. gas b. liquid c. solid 9. particles in the gaseous state move ____ than particles in the liquid state? a. faster b. slower 10. the temperature of the system is highest when it is a____. a. solid b. liquid c. gas 11. what is the same about a particle as gas, liquid, or solid? a. the speed at which the particles move. b. the volume that the substance takes up. c. the chemical composition. d. the temperature of the substance. 12. what is the volume of a liquid in a 50 ml cup? a. 50 ml b. 10 ml c. there is not enough information to answer this question 13. a closed container is the best way to measure the volume of a __ a. gas b. liquid c. solid d. both a and b are correct. 14. how would you characterize a liquid? a. has a fixed volume b. has a fixed shape c. takes the shape of a container d. both a and c 15. bromine is a liquid at room temperature. the volume of a sample of bromine is measured in a 50 ml beaker and a 100 ml beaker. how will the two measurements compare? a. the volume of bromine will be larger in the 100ml beaker b. the volume of bromine will be smaller in the 50ml beaker c. the volumes will be the same d. both a and b

Explanation:

• Question 8: Solids have a definite shape. Liquids take the shape of the container and gases expand to fill the container. Since the shape doesn't change when poured, it's a solid.
• Question 9: Gas - phase particles have more kinetic energy and move faster than liquid - phase particles.
• Question 10: Gases have the highest average kinetic energy among the three states of matter, so the system temperature is highest when it is a gas.
• Question 11: The chemical composition of a substance is the same regardless of its state (solid, liquid, or gas). Particle speed, volume, and temperature can vary with state.
• Question 12: Just because it's a 50 mL cup doesn't mean it's filled to the brim. There isn't enough information to know the volume of the liquid.
• Question 13: Gases need a closed - container to measure volume accurately because they expand to fill the available space. Liquids and solids have definite volumes and don't require a closed container for volume measurement in the same way.
• Question 14: Liquids have a fixed volume and take the shape of the container they are in. They don't have a fixed shape.
• Question 15: The volume of a liquid is an inherent property of the amount of the liquid and doesn't depend on the size of the container used to measure it.

Answer:

1. c. Solid
2. a. Faster
3. c. Gas
4. c. The chemical composition.
5. c. There is not enough information to answer this question
6. a. Gas
7. d. Both a and c
8. c. The volumes will be the same