2. pH What is the pH of an ACID? Which type of OXIDE forms an ALKALI? Which type of OXIDE forms an ACID? What happens to the pH of an ACID when it is diluted? What happens to the concentration of an ALKALI when it is diluted? When ammonia dissolves in water does it produce an ACID or ALKALI?

3. Formula What is the formula of HYDROCHLORIC ACID? What is the formula of SODIUM HYDROXIDE? What is the formula of SULPHURIC ACID? What is the formula of potassium hydroxide? What is the formula of nitric acid?

4. STRENGTH Do STRONG acids exist as molecules or ions? Is AMMONIA gas a strong or weak alkali? Do weak ALKALIS exist as molecules or ions? Which will conduct more – a weak or strong alkali? Which will react more – a weak or strong acid? Is ethanoic acid a strong or weak acid? Is lithium hydroxide a strong or weak alkali? Is nitric acid a strong or weak acid?

5. REACTIONS What are the products when an acid reacts with a metal? What would react with an acid to form a salt, water and carbon dioxide? In which reaction is water NOT produced? What will the salt be when sulphuric acid reacts with sodium hydroxide?