Chemical Reactions

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Across
  1. 3. A reaction involving heating calcium carbonate to form carbon dioxide and calcium oxide
  2. 7. A reaction that produces energy.
  3. 10. Reaction with oxygen
  4. 12. Acid-base reaction
Down
  1. 1. An example of a chemical reaction
  2. 2. An example of a reaction in which atoms from high to low energy state
  3. 4. A reaction that forms water from oxygen and hydrogen
  4. 5. A reaction that takes in energy
  5. 6. Starting material in a reaction
  6. 8. Formed by a reaction
  7. 9. An example of a reaction that leads to atoms with more energy
  8. 11. An example of a physical change