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The reaction has to begin with Fe2+ ion. Since permanganate ion is an oxidizing agent, that means that for this redox reaction to make sense, the Fe2+ must be oxidized. For the Fe2+ to be oxidized, it must lose an electron. You can't get Fe from that. You can only get Fe3+.
David Zhou 1L wrote:For this though, couldn't the Fe be oxidized into Fe2+? Why does it have to be Fe2+ oxidized into Fe3+?
I believe it's because we have FeCl2 as a reactant, which would imply the iron on the reactants side must be Fe2+.
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