Across
- 2. The foul smell developed due to oxidation of food
- 6. 2 or more substances combine to form single substance
- 8. Reaction in which heat energy is released
- 9. reaction in which one element displaces another
- 10. gain of oxygen/loss of hydrogen
Down
- 1. An insoluble substance in a chemical reaction
- 3. Tarnishing of metals due to the reaction with air & H2O
- 4. Reaction in which heat energy is absorbed by reactants
- 5. A precious metal which resist corrosion
- 7. Loss of oxygen/gain of hydrogen