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Chemistry B
Air and water
Atmospheric changes over time
Chemical formulae

Chemical formulae

OCR GCSE Chemistry B (J258) — Air and water

What You Need to Know

Use chemical symbols to write the formulae of elements and simple covalent compounds.

Revision Notes

Chemical formulae

Practise with Past Papers Key Terms & Definitions

Previous SubtopicProblems and reduction of pollutants Next SubtopicWriting balanced equations