Edexcel GCSE Chemistry · 1CH0
Specification 3.12, 9.1C · Paper 1, Paper 2
Revise: Tests for GasesA chemical test exposes a sample to particular conditions and uses a characteristic observation to identify it.
- Revise: Suggested Practicals
A chemical used to identify another substance through an observable change.
- Revise: Uniqueness of Tests
A procedure in which a sample is treated in a specified way and the resulting observation is used as evidence about its identity.