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Across 3. a solution in which the solvent is water 7. A base which dissolves in water 8. a chemical detector which changes colour for acids and bases. 10. A low concentration of acid in a solution 11. A scale from 0 – 14 which indicates the strength of an acid or base.

Down 1. a compound which neutralises an acid by accepting a hydrogen ion (H+) 2. A high concentration of acid in a a solution 4. An acid which quickly forms a high level of hydrogen ion (H+) 5. A chemical reaction in which an acid and a base react to produce salt and water 6. a compound which donates a hydrogen ion (H+) to another compound.A compound witha sour tatse 9. The chemical produced by a neutralisation between an acid and a base