Complete the half-equation for the reduction reaction taking place at the cathode in an acidic hydrogen-oxygen fuel cell.
O2+………H++……⋯→2H2O \text{O}_2 + \dots\dots\dots \text{H}^+ + \dots\dots\dots \rightarrow 2\text{H}_2\text{O} O2+………H++……⋯→2H2OPractise Edexcel GCSE Chemistry Chemical cells and fuel cells with exam-style questions for Foundation and Higher tier. 17 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.
