An iron key is electroplated with silver by the electrolysis of a silver nitrate solution (AgNO3AgNO_3AgNO3) using a pure silver anode.
Write the half-equation for the formation of a silver atom from a silver ion at the cathode.
Practise Edexcel GCSE Chemistry Electrolytic processes with exam-style questions for Foundation and Higher tier. 83 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.
