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Metal oxide — AQA GCSE Combined Science Trilogy Definition | GradeGen

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Combined Science
Key terms
Metal oxide

GCSE Combined Science · key term

Metal oxide

Definition

A compound containing a metal chemically combined with oxygen.

Used by AQA

How each exam board covers it

AQA GCSE Combined Science Trilogy · 8464

Specification 5.4.1.1, 5.4.1.3 · Paper 3

When a metal reacts with oxygen, it forms a metal oxide. Oxygen is present in the air, so it can react with a metal exposed to air.
Revise: Metal Oxides
A compound of a metal and oxygen.
Revise: Extraction of Metals and Reduction

AQA Combined Science Trilogy past papers

Exam tips

1
The carbon extraction rule applies to metal oxides and to metals less reactive than carbon—not to every metal compound.

Related key terms

Oxidation
Reduction
Metal extraction
Ore
Redox reaction

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