CAIE A Level Chemistry 9701 · The Periodic Table: chemical periodicity
Aluminium oxide, , reacts with both dilute hydrochloric acid and aqueous sodium hydroxide.
Compare these two reactions. In your answer, include the equations for both reactions and state the type of behaviour that aluminium oxide shows.
6 marks, so the mark scheme is looking for about 6 separate creditworthy points. Making the same point twice in different words earns it once.
Compare means: Give similarities or differences between two things, and say which side each point belongs to. Write each point as a pair, for example: A is X, whereas B is Y. Two separate descriptions rarely earn the marks.
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