Chemistry Unit Review

2. The phase change from a liquid to a solid
6. The phase change from a gas to a liquid
8. Anything that has mass and takes up space
11. An example of a _ change is melting ice
13. A substance that has a pH of 7 is considered a _
15. A state of matter that has medium energy and molecules flow against each other
16. The phase change from a gas to a solid

1. Energy of an object or particle due to its motion or movement
3. A substance is a _ if it has a pH of 8-14 on the pH scale
4. An example of a _ change is cooking food
5. The ability to do work or cause change
7. The law of _ of energy states that energy can not be created or destroyed, only transformed
9. A state of matter that has low energy
10. A substance is an _ if it has a pH of 0-6 on the pH scale
11. The positively charged subatomic particle found in the center of an atom
12. Energy that can be heard by the human ear
14. A state of matter that has high energy and the molecules are very far apart