Inorganic chemistry

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Across
  1. 2. Reaction that needs Fe as catalyst,450C and200 atm
  2. 7. when water is added to lime
  3. 10. Colorless gas with a sharp, harsh odor.
  4. 13. Made up of f Nitrogen phosphorus and potassium
  5. 14. The process of N removal from fossil fuel
Down
  1. 1. A carbon sink
  2. 3. sulfur reacts with metals
  3. 4. One of the requirements for photosynthesis
  4. 5. Brittle, yellow solid.
  5. 6. The process of S removal from fossil fuel
  6. 8. Contains nitrogen, sulphur and hydrocarbon.
  7. 9. When CO2 is passes through Limewater, The colorless limewater solution
  8. 11. Calcium carbonate
  9. 12. in making steel from iron