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

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


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


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1 answer
  1. 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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