A carton is labelled 'pure apple juice'. Nothing has been added to the juice.
In chemistry, is the apple juice a pure substance or a mixture?
Name the term for a substance containing atoms of two or more different elements chemically bonded together.
The accepted boiling point of water under the test conditions is 100 ∘C100\ ^\circ\text{C}100 ∘C.
A water sample boils at 103 ∘C103\ ^\circ\text{C}103 ∘C.
What does this result show about the water sample?
113 exam-style questions on AQA GCSE Chemistry 8.1 Purity, formulations and chromatography, covering 8.1.1 Pure substances, 8.1.2 Formulations, and 8.1.3 Chromatography. Each one has a worked solution and a mark scheme showing where the marks go.