When solid sodium hydrogencarbonate (NaHCO3\text{NaHCO}_3NaHCO3) is heated, it undergoes thermal decomposition to produce solid sodium carbonate (Na2CO3\text{Na}_2\text{CO}_3Na2CO3), carbon dioxide gas (CO2\text{CO}_2CO2), and water vapour (H2O\text{H}_2\text{O}H2O).
Write the balanced chemical 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.