This unit builds on unit 8E 'Atoms and elements' and unit 8F 'Compounds and mixtures'.
In unit 7E 'Acids and alkalis', pupils will have observed neutralisation reactions, and in unit 7F 'Simple chemical reactions', they will have identified that there are chemical reactions between acids and metals and between acids and carbonates. However, they are unlikely to have considered the other products of these reactions. With some pupils, teachers may wish to concentrate on some of the new topics, extending activities, and with others to spend more time on revision of previous work.
This unit lays the foundation for unit 9F 'Patterns of reactivity'.
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