The chemical equation shows the reduction of copper(II) oxide using carbon monoxide:
CuO(s)+CO(g)→Cu(s)+CO2(g) \text{CuO(s)} + \text{CO(g)} \rightarrow \text{Cu(s)} + \text{CO}_2\text{(g)} CuO(s)+CO(g)→Cu(s)+CO2(g)Explain, in terms of oxygen, which substance is reduced in this reaction.
110 exam-style questions on Edexcel GCSE Chemistry 5.1 Obtaining and using metals, covering 5.1.1 The reactivity series of metals, 5.1.2 Displacement reactions as redox reactions, 5.1.3 Extracting metals from ores by reduction, 5.1.4 Biological methods of metal extraction, 5.1.5 Resistance to oxidation and recycling metals, and 5.1.6 Life cycle assessment. Each one has a worked solution and a mark scheme showing where the marks go.