Question

2 Ag+(aq) + Fe(s) --> 2 Ag(s) + Fe2+(aq)

Which electrode is the anode, and which is the cathode.

and

In which directions do the cations and anions migrate through the solution?
cations

thanks

Answers

Write the two half equations.
Ag^+ + e ==> Ag
Fe==> Fe^+2 + 2e
Which one loses electrons. That is oxidation. Oxidation occurs at the anode.

The anode is - charge. Fe^2+ are increasing (which means more negative ions migrate to that half cell). Ag^+ is decreasing which means fewer negative ions needed in that half cell.

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