C6 and C8 Revision

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Across
  1. 3. an industrial process that produces ammonia
  2. 4. a diagram that shows the relative difference in the energy of reactants and products
  3. 8. a reaction that takes in energy from the surroundings
  4. 10. a reaction in which the products can re-form the reactants
  5. 11. a substance that speeds up a chemical reaction by providing a different pathway for the reaction that has a lower activation energy
  6. 12. a reaction that transfers energy to the surroundings
  7. 13. the point in a reversible reaction at which the forward and backward rates of reaction are the same
  8. 14. a substance made when two or more elements are chemically bonded together
  9. 15. the process whereby small amounts of dissolved substances are separated by running a solvent along a material such as paper
Down
  1. 1. an explanation of chemical reactions in terms of reacting particles colliding with sufficient energy for a reaction to take place
  2. 2. a mixture that has been designed as a useful product
  3. 5. a substance that is made up of only one compound or element
  4. 6. the minimum energy needed for a reaction to take place
  5. 7. a measurement from chromatography, which is the distance a spot of substance has been carried divided by the distance of the solvent front
  6. 9. the gas present when limewater turns milky white