Chemistry GCSE
Mixtures versus pure substances
What Mixtures versus pure substances means in Chemistry GCSE, as defined for AQA.
Definition of Mixtures versus pure substances
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Reference: AQA
A mixture usually melts or boils over a range of temperatures because its different components change state at different temperatures, while a pure substance melts sharply at one temperature.
Topics that use Mixtures versus pure substances
- Pure substances (AQA GCSE)
Related terms
- Comparison with known values
- Context in scientific language
- Effect of impurities on physical properties
- Everyday versus chemical meaning
- Evidence-based conclusions
- Melting and boiling point data
- Melting and boiling points
- Mixture
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