Acids, Alkalis and Bases

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Across
  1. 4. an insoluble metal oxide
  2. 7. an indicator that shows a range of colours corresponding to the pH scale
  3. 9. a soluble base
Down
  1. 1. a reaction where equal amounts of acid and alkali react
  2. 2. an indicator that shows whether a chemical is an acid or an alkali
  3. 3. the neutral liquid made during a neutralisation reaction
  4. 5. a chemical made during a reaction between an acid and a metal compound
  5. 6. a common lab acid
  6. 8. a common lab alkali
  7. 10. a corrosive liquid