Across
- 7. a chemical reaction that releases energy
- 10. process where one or more substances rearrange into one or more new substances
- 12. something added to a reaction to speed it up
- 13. what is created in a chemical reaction
- 15. a chemical reaction where one larger part creates two smaller parts (AB -> A+B)
- 16. the starting chemicals in a reaction
- 18. a chemical reaction in which a substance combines with oxygen and releases energy
- 19. a chemical reaction where 2 small parts create one larger part (A+B -> AB)
Down
- 1. a chemical reaction where the amount of atoms on each side is the same
- 2. AB+C -> AC+B
- 3. something added to a biological reaction to speed it up
- 4. the small number under an element that tells you quantity
- 5. AB+CD -> AD+CB
- 6. something added to a chemical reaction to slow or stop it
- 8. the large number in front of a chemical formula that tells you the quantity
- 9. the energy needed to start a chemical reaction
- 11. the speed at which a reaction occurs at
- 14. the symbolic representation of a chemical reaction
- 17. a chemical reaction that absorbs energy
