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GCSE Chemistry · key term
A compound containing a metal chemically combined with oxygen.
Used by AQA and Edexcel
Specification 4.4.1.1, 4.4.1.3 · Paper 1
Revise: Oxidation of MetalsReduction is the opposite oxygen change: a substance is reduced when it loses oxygen. This is especially clear when oxygen is transferred from a metal oxide to another substance.
A compound containing a metal chemically bonded to oxygen.
Specification 3.11 · Paper 1
Revise: Reactions of AcidsMany metal oxides are bases.
Do not describe an acid–metal reaction as neutralisation. Metal oxides and metal hydroxides act as bases, forming salt and water only; a metal carbonate also produces carbon dioxide, so it does not fit this course’s definition of a base.
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