CHEM_2.3 COMBUSTION

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Across
  1. 2. a substance that burns very quickly creating a lot of expanding gases.
  2. 8. The process of burning substances in air or oxygen with the release of heat and light.
  3. 9. Class C fires are those which involve ______
  4. 11. fire is used for heat, light, and _____.
  5. 13. a soda-acid fire extinguisher uses acid to react with bicarbonates of metal to release _____.
  6. 15. used as an oxidizer in gunpowder.
Down
  1. 1. A substance that burns easily
  2. 3. Only substances that _____ burn with a flame.
  3. 4. Non-luminous zone or the zone of complete combustion is the ____ part of the candle flame.
  4. 5. also known as the zone of incomplete combustion.
  5. 6. The lowest temperature at which a combustible substance starts burning
  6. 7. material that stores chemical energy which is released through combustion.
  7. 10. It has the highest calorific value.
  8. 12. Substances that have a very low ignition temperature and hence can catch fire easily.
  9. 14. a chemical reaction in which a substance combines with oxygen.