Energy

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Across
  1. 1. Process to make ammonia
  2. 3. Needed for the Haber process, obtained from the atmosphere
  3. 8. A reaction which goes in the forward and backward direction
  4. 9. Reaction that gives out heat energy
Down
  1. 2. NH3
  2. 4. Reaction that takes in heat energy
  3. 5. Energy needed to start a reaction
  4. 6. System needed for an equilibrium
  5. 7. Catalyst for the Haber process