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Problem: Which half-reduction correctly represents reduction?a.) Mn4+ → Mn3+ + e-b.) Mn4+ → Mn7+ + 3 e-c.) Mn4+  +e- → Mn3+d.) Mn4+  +e3- → Mn7+

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Remember the mnemonics: LEO GER

Loss                Gain
Electrons         Electrons
Oxidation         Reduction

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Problem Details

Which half-reduction correctly represents reduction?
a.) Mn4+ → Mn3+ + e-
b.) Mn4+ → Mn7+ + 3 e-
c.) Mn4+  +e- → Mn3+
d.) Mn4+  +e3- → Mn7+

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