Chemistry GCSE
Decomposition reactions
What Decomposition reactions means in Chemistry GCSE, as defined for AQA.
Definition of Decomposition reactions
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Reference: AQA
Chemical reactions that break a compound into its elements or simpler compounds, for example passing electricity through molten sodium chloride or heating mercury oxide.
Topics that use Decomposition reactions
- Atoms, elements and compounds (AQA GCSE)
Related terms
- Balanced chemical equation
- Balanced equation
- Chemical change
- Chemical symbol
- Endothermic
- Exothermic
- Fixed composition and atom ratios
- Formulae as symbolic representations
Using Decomposition reactions in the exam
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