Crossword Puzzle

3. Represents a chemical reaction using the names of the substances involved.
7. Equal to mass divided by volume.
9. Is one in which two different compounds exchange positive ions and form a new compound.
10. A number placed in front of a formula to balance a chemical equation.
12. A substance that increases the rate of a chemical reaction without going through chemical change.
15. the construction of complex chemical compounds from simpler ones.
16. A chemical reaction that releases energy to its surroundings.
17. a detailed examination of anything complex in order to understand it.
19. The process that releases heat.

1. to bring back or return something.
2. Breaking a single chemical entity into two or more pieces.
4. Is a reaction in which one element takes place of another element in the compound.
5. The substance that is present at the end of a chemical reaction.
6. The substance that takes part in and undergoes change during a reaction
8. A unit of measurement chemists use.
9. The distance from the surface to the bottom.
11. A substance that has no fixed shape.
13. An upward force exerted by a fluid.
14. to take place of.
15. The school where Mr.Terras teaches.
18. A mechanical upward force.