Chemistry A-Level
positive and negative results
What positive and negative results means in Chemistry A-Level, as defined for AQA.
Definition of positive and negative results
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Reference: AQA
Recording every result, including the ones where nothing happens, rather than reporting only the positive tube and leaving the other unexplained.
Topics that use positive and negative results
Related terms
- bromine water and dichromate
- conclusion from observation
- identifying method errors
- planning a test sequence
- reagent, condition, observation
- Tollens' and Fehling's
- carbonate test for acids
- flammable organic liquids
Using positive and negative results in the exam
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