If copper (II) sulfate solution and an iron nail are in contact, a replacement reaction occurs. What would the products of the reaction be?2Fe + 3CuSO4 → ?

Iron is more reactive than copper, so it replaces copper in copper(II) sulfate. The balanced equation is 2Fe + 3CuSO4 → Fe2(SO4)3 + 3Cu, producing iron(III) sulfate and copper metal. Therefore, choice B is correct.

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