Chemistry GCSE
Variable composition
What Variable composition means in Chemistry GCSE, as defined for AQA.
Definition of Variable composition
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Reference: AQA
The components of a mixture can be present in any proportion, unlike a compound which has a fixed composition by mass.
Topics that use Variable composition
- Mixtures (AQA GCSE)
Related terms
- Chemical versus physical properties
- Chromatography
- Conservation of chemical identity in mixtures
- Contrast between mixtures and compounds
- Crystallisation
- Evidence for no new substance
- Evidence from characteristic reactions and tests
- Filtration
Using Variable composition in the exam
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