Ionic bondingAQA A-Level Chemistry: Mind map

Exam questions on Ionic bonding

1. Magnesium oxide is used to line industrial furnaces because it has a very high melting point. Aluminium sulfate is used to treat drinking water.
   Describe the bonding in magnesium oxide.2 marks
2. A garden fertiliser is a mixture of ammonium nitrate and ammonium sulfate. The manufacturer lists the ingredients using their formulas.
   Explain why the formula of ammonium sulfate contains two ammonium ions for every sulfate ion.2 marks
3. A geologist records three minerals in a rock sample: bauxite, which contains aluminium oxide; limestone, which contains calcium carbonate; and a salt deposit containing calcium nitrate.
   Use the position of the elements in the Periodic Table to predict the charge on the ions in aluminium oxide, and construct its formula.3 marks