Question

What is the net ionic equation for the reaction of solid iron with aqueous copper sulfate?

Answer 1

Fe (s) + CuSO4 (aq) -> FeSO4 (aq) + Cu (s)
or
Fe (s) + Cu(2+) (aq) + SO4(2-) (aq) -> Fe(2+) (aq) + SO4(2-) (aq) + Cu (s)
after eliminating spectator ion (sulphate ion) we have net equation:
Fe (s) + Cu(2+) (aq) -> Fe(2+) (aq) + Cu (s)