Chemical Reactions and Equations

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Across
  1. 2. The spoilage of food containing fats and oils due to oxidation.
  2. 4. Substances that undergo chemical change in a reaction.
  3. 7. A reaction where a single substance breaks down into two or more substances.
  4. 10. A reaction that absorbs heat energy.
  5. 11. A reaction where two compounds exchange ions to form new compounds.
  6. 13. A reaction where two or more substances combine to form one.
  7. 14. A substance that speeds up a chemical reaction without being consumed.
  8. 15. Gain of oxygen or loss of hydrogen in a reaction.
Down
  1. 1. An insoluble solid that forms during a chemical reaction in a solution.
  2. 3. A reaction where one element replaces another in a compound.
  3. 5. Loss of oxygen or gain of hydrogen in a reaction.
  4. 6. The gradual destruction of metals due to reactions with air or moisture.
  5. 8. Substances formed as a result of a chemical reaction.
  6. 9. A chemical reaction in which a compound is broken down by light energy.
  7. 12. A reaction that releases heat energy.