Barium chloride solution reacts with sodium sulfate solution. A white precipitate of barium sulfate forms.
What is the ionic equation for this reaction?
Na++Cl−→NaCl\mathrm{Na^{+} + Cl^{-} \rightarrow NaCl}Na++Cl−→NaCl
BaCl2+SO42−→BaSO4+2Cl−\mathrm{BaCl_{2} + SO_{4}^{2-} \rightarrow BaSO_{4} + 2Cl^{-}}BaCl2+SO42−→BaSO4+2Cl−
Ba2++2Cl−→BaCl2\mathrm{Ba^{2+} + 2Cl^{-} \rightarrow BaCl_{2}}Ba2++2Cl−→BaCl2
Ba2++SO42−→BaSO4\mathrm{Ba^{2+} + SO_{4}^{2-} \rightarrow BaSO_{4}}Ba2++SO42−→BaSO4
55 exam-style questions on OCR GCSE Chemistry 3.1 Introducing chemical reactions, covering 3.1.1 Writing formulae and balanced chemical equations, 3.1.2 Formulae of compounds from ions, and state symbols, 3.1.3 Conservation of mass and observed changes in mass, 3.1.4 Half equations and balanced ionic equations, 3.1.5 The mole and the Avogadro constant, and 3.1.6 Stoichiometry, limiting reactants and reacting masses. Each one has a worked solution and a mark scheme showing where the marks go.