Combined Science GCSE
Impure substance
What Impure substance means in Combined Science GCSE, as defined for AQA.
Definition of Impure substance
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Reference: AQA
A substance that contains two or more substances, so it produces two or more spots, or a smeared streak, under the same conditions.
Topics that use Impure substance
- Chromatography (AQA GCSE)
Related terms
- Chromatogram
- Chromatography
- Distribution between phases
- Identification by comparison
- Identification of substances
- Identification using reference values
- Measurement from a baseline
- Pure substance
Using Impure substance in the exam
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