In Liu An's Book of Huainan Wanbi in the Western Han Dynasty, it has been recorded that Zeng Qing was burned into copper coins. Try to answer the following questions: There is the principle of "copper

In Liu An's Book of Huainan Wanbi in the Western Han Dynasty, it has been recorded that Zeng Qing was burned into copper coins. Try to answer the following questions: There is the principle of "copper hydrometallurgy". Because the activity of iron is stronger than that of copper, iron can replace copper in copper sulfate, and its equation is: Fe+CuSO4=FeSO4+Cu. The characteristic of this reaction is that the reactant product is both a simple substance and a compound, which belongs to displacement reaction.

So the answer is: Fe+CuSO 4 = FeSO 4+Cu; Replace.