Magnesium is added to aqueous copper(II) sulfate and copper is produced, together with aqueous magnesium sulfate. Which equation shows this reaction correctly?
- A$\text{Mg} + \text{CuSO}_4 \rightarrow \text{Cu} + \text{MgSO}_4$
- B$\text{Mg} + \text{Cu}_2\text{SO}_4 \rightarrow 2\text{Cu} + \text{MgSO}_4$
- C$2\text{Mg} + \text{CuSO}_4 \rightarrow \text{Cu} + \text{Mg}_2\text{SO}_4$
- D$2\text{Mg} + \text{Cu}_2\text{SO}_4 \rightarrow 2\text{Cu} + \text{Mg}_2\text{SO}_4$