Chemistry · Unit 3 · Oxidation and reduction · Redox reactions
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Zinc metal is added to a solution of copper(II) sulfate. The reaction produces zinc sulfate solution and solid copper. (a) Determine which species is oxidised. [1] (b) Determine which species is the reducing agent. [1]
Identify the species being oxidised in the equation. $$\text{Zn}(s) + \text{Cu}^{2+}(aq) \rightarrow \text{Zn}^{2+}(aq) + \text{Cu}(s)$$
Aluminium reacts with oxygen to produce aluminium oxide. $$4\text{Al}(s) + 3\text{O}_2(g) \rightarrow 2\text{Al}_2\text{O}_3(s)$$ Determine the oxidising agent.