Choose from the following chlorides to answer the questions. aluminium chloride ammonium chloride calcium chloride hydrogen chloride iron(III) chloride silver chloride sodium chloride Each chloride may be used once, more than once or not at all. Which chloride:

1. (a)contains a cation with a 2+ charge[1]
2. (b)reacts with warm aqueous sodium hydroxide to form a gas which turns damp red litmus paper blue[1]
3. (c)is insoluble in water[1]
4. (d)has a molecule which has only 18 protons[1]
5. (e)is a coloured solid at room temperature and pressure?[1]