Acid solutions contain hydrogen ions.
Chromium reacts with dilute hydrochloric acid to form a solution containing chromium(III) ions, Cr3+\text{Cr}^{3+}Cr3+, and hydrogen gas.
Complete the balanced ionic equation for this reaction.
……⋯+……H+→……Cr3++……… \dots\dots\dots + \dots\dots \text{H}^+ \rightarrow \dots\dots \text{Cr}^{3+} + \dots\dots\dots ……⋯+……H+→……Cr3++………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.