2. What are the three common states of matter? Solid, plasma, liquid Liquid, Gas, Plasma Solid, Liquid, Gas None of the above

3. Which state of matter has a definite volume but not a definite shape? Solid Liquid Gas Plasma

4. What do liquids and solids have in common? They both have a definite volume They both have a definite shape and volume They both have a definite shape They both change to gases

5. 99% of all matter in the universe exists as what state? Solids Liquids Gases Plasma

6. What is the fifth state of matter? Bose-Einstein condensate (BEC) Einstein-Bose condensate plasma solutions

7. If you move a substance from one container to another and its volume changes, the substance is a solid liquid solution gas

8. What is the result of a force distributed over an area? pressure temperature volume mass

9. Collisions of helium atoms with the walls of a closed container cause gas pressure condensation a decrease in volume an overall loss of energy

10. Which of the following factors affects the pressure of an enclosed gas? temperature volume number of particles all of the above

11. Which of the following will cause a decrease in gas pressure in a closed container reducing the volume adding more gas lowering the temperature both a and b

12. The temperature and volume in a closed container of gas remain constant. If the number of particles of gas is increased, the gas pressure will decrease increase remain constant cause a decrease in the average kinetic energy of the particles

13. The phase change that is the reverse of condensation is vaporization freezing sublimation melting

14. The phase change that is the reverse of sublimation is condensation deposition melting vaporization

15. What type of change occurs when water changes from a solid to a liquid? a phase change a physical change an irreversible change both a and b

16. During which phase does the arrangement of water molecules become more orderly? freezing melting boiling evaporating

17. The phase change in which a substance changes from a liquid to a gas is vaporization deposition sublimation condensation

18. The phase change in which a substance changes from a solid to a liquid is freezing sublimation condensation melting

19. The phase change in which a substance changes from a solid to a gas or vapor without changing to a liquid first is deposition vaporization melting sublimation

20. 20 The phase change in which a substance changes from a gas directly to a solid is 1.condensation 2. vaporization 3. deposition 4. sublimation 20

21. 21 Which of the following phase changes is an endothermic change? 1. condensation 2. vaporization 3. deposition 4. freezing 21

22. 22 Which of the following phase changes is an exothermic change? 1. sublimation 2. deposition 3. vaporization 4. melting 22

23. 23 What substance in the figure below is a solid. Explain how you know. 23