Some zinc ores contain zinc sulfide.
In the first stage of extracting zinc from zinc sulfide, the zinc sulfide, ZnS\text{ZnS}ZnS, is heated in air (reacting with oxygen, O2\text{O}_2O2) to form zinc oxide, ZnO\text{ZnO}ZnO, and sulfur dioxide, SO2\text{SO}_2SO2.
Write the balanced symbol equation for this reaction.
230 exam-style questions on Edexcel GCSE Chemistry 1.1 Formulae, equations and hazards, covering 1.1.1 Formulae, word and balanced equations, 1.1.2 Balanced ionic equations, and 1.1.3 Hazard symbols and risk in practical work. Each one has a worked solution and a mark scheme showing where the marks go.