Chapter 2

12345678910111213
Across
  1. 4. A reaction that releases thermal energy.
  2. 5. The small amount of energy needed to start a reaction.
  3. 9. A reaction that switches places forming a new compound.
  4. 11. A chemical reaction that produces carbon dioxide and water.
  5. 12. A chemical reaction that has two substances combine to make a compound.
  6. 13. The starting substances in a chemical reaction.
Down
  1. 1. A process in which atoms rearrange to form a new substance.
  2. 2. substance that increase reaction rate by lowering the activation energy.
  3. 3. A reaction that absorbs energy.
  4. 6. A catalyst that speeds up a reaction.
  5. 7. The substances produced by a chemical reaction.
  6. 8. A chemical reaction when one compound breaks down into two substances.
  7. 10. A substance that slows or stops a reaction.