Chapter 2

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