Chemical reactions and equations

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