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2. A number placed in front of a chemical symbol or formula
7. A reaction that releases energy from the system to its surroundings
9. to sketch something using lines
10. The ability to float in water, air, or some other fluid
11. My relationship status
14. A substance that has no fixed shape and yields easily to external pressure; a gas or a liquid.
15. a person's regular occupation, profession, or trade.
17. A substance that increases the rate of a chemical reaction without itself undergoing any permanent chemical change.
19. The distance from the top or surface to the bottom of something.

1. Chemical reactions that absorb (or use) energy overall
3. The combination of ideas to form a theory or system
4. A mathematical statement with an equal sign in it.
5. A substance's mass per unit of volume
6. A substance that takes part in and undergoes change during a reaction.
8. A very important unit of measurement that chemists use
9. The state or process of rotting
12. An article or substance that is manufactured or refined for sale.
13. Two of something
16. The acronym for our high school
18. To raise to a higher position or level.Entertainment an event, performance, or activity designed to entertain others.