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When copper (Cu) reacts with magnesium sulfate (MgSO4), a displacement reaction occurs. In this reaction, the more reactive copper metal displaces the less reactive magnesium metal from the sulfate ion. The chemical equation for this reaction is:
Cu + MgSO4 → CuSO4 + Mg
In this reaction, copper metal (Cu) reacts with magnesium sulfate (MgSO4) to form copper sulfate (CuSO4) and magnesium metal (Mg). The reaction is observed as a blue solution of copper sulfate and a gray solid of magnesium metal.