Reactions keywords

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Across
  1. 6. a base that is soluble in water. It has a pH above 7.
  2. 7. a reaction where energy is given out, usually as heat
  3. 8. when an acid and alkali react together producing a salt and water
Down
  1. 1. the reaction of a fuel with oxygen that transfers thermal energy to the surroundings. Scientific name for burning.
  2. 2. a reaction when a more reactive metal will displace a less reactive metal from its compound
  3. 3. a substance made in a chemical reaction.
  4. 4. a reaction where energy is taken in, usually as heat.
  5. 5. a starting substance in a chemical reaction.
  6. 6. a substance that will neutralise a base. It has a pH lower than 7.