Eshan Ali 10-L

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Across
  1. 7. reaction always have oxygen as a reactant
  2. 8. reaction with two elements forming a compound
  3. 10. Reaction involving breakdown of a compound using electricity
  4. 12. a type of decomposition reaction which is carried out by heat
  5. 13. Gain of oxygen or loss of hydrogen.
  6. 14. Spoiling of fats and oils due to oxidation
  7. 15. Gradual damage of metal by chemical reaction
  8. 16. reaction that releases heat
Down
  1. 1. a substance that speeds up reaction without being used
  2. 2. Reaction forming water and salt
  3. 3. a type of decomposition of molecules by the action of light
  4. 4. reaction combines two or more substances to form one product
  5. 5. reaction that absorbs heat
  6. 6. Solid formed during a chemical reaction in solution
  7. 9. reaction breaking down a compound into simpler substances
  8. 11. reaction that involves transfer of electrons