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Chemistry, 23.08.2019 18:30 yuluvk

Which half-reaction correctly represents reduction?
(1) mn4+ ==> mn3+ + e-
(2) mn4+ ==> mn7+ + 3e-
(3) mn4+ + e- ==> mn3+
(4) mn4+ + 3e- ==> mn7+

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Which half-reaction correctly represents reduction?
(1) mn4+ ==> mn3+ + e-
(2) mn4+...
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