Chemical Reactions

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Across
  1. 4. Another name for Iron Oxide
  2. 5. What is made when you add oxygen to something
  3. 7. The name of the chemicals to the right hand side of a word equation
  4. 9. A chemical with the symbols of CaCO3
  5. 12. A type of reaction that is not reversible
  6. 13. A type of reaction involving adding oxygen. Also called combustion.
  7. 14. A reaction that joins chemicals together
Down
  1. 1. A reaction that gives out heat
  2. 2. A reaction that is reversible
  3. 3. A reaction the breaks chemicals down using heat
  4. 6. A reaction that takes in heat
  5. 8. The mass of reactants and products is always equal. ________ of mass.
  6. 10. A sign that gas is given off in an experiment
  7. 11. The name of the chemicals to the left hand side of a word equation