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