Industrial liquid waste sometimes contains dissolved precious metals. Scrap copper can be used to recover silver metal from a solution containing silver ions.
Cu(s)+2Ag+(aq)→Cu2+(aq)+2Ag(s) \text{Cu}(\text{s}) + 2\text{Ag}^{+}(\text{aq}) \rightarrow \text{Cu}^{2+}(\text{aq}) + 2\text{Ag}(\text{s}) Cu(s)+2Ag+(aq)→Cu2+(aq)+2Ag(s)Explain why this displacement reaction is described as a redox reaction. You should refer to electrons in your answer.
Practise Edexcel GCSE Chemistry Obtaining and using metals with exam-style questions for Foundation and Higher tier. 100 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.