Chemical reactions

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Across
  1. 5. The reaction of metals with air and water in the atmosphere
  2. 6. A reaction that takes in heat energy
  3. 8. A reaction that involves the addition of oxygen
  4. 9. A reaction that gives out heat energy
  5. 10. The reaction when a substance burns in the air
Down
  1. 1. A reaction that involves a compound being broken down by heat
  2. 2. A reaction when a more reactive metal displaces a less reactive metal from a solution
  3. 3. The reaction between an acid and an alkali to make a salt
  4. 4. In a chemical reaction, all particles at the start in the reactants are there at the end, rearranged in the products
  5. 7. The reaction that takes place in every living cell, releasing energy