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    What happens to the 5 electrons ?
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    (Original post by Hazel99)
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    What happens to the 5 electrons ?
    They are used to change the oxidation state of the manganese atoms from +7 to +2. They come from the species being oxidised.
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    Also, it should be MnO4-, not 2-.

    You're slacking charco!
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    (Original post by Pigster)
    Also, it should be MnO4-, not 2-.

    You're slacking charco!
    I restrict myself to answering the question!
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    (Original post by charco)
    I restrict myself to answering the question!
    I that case, you didn't answer the Q, as the o.n. of the Mn is +6, not +7 : )
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    Just change the number of electrons in that case though to balance out the charge?
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    (Original post by Hazel99)
    What happens to the 5 electrons ?
    They are changing the oxidation state of manganese as charco said. The oxidation number of manganese is +7 in this case, five added electrons reduced this number to +2 (what means there is still a proton excess of two protons after adding five electrons).


    (Original post by Pigster)
    Also, it should be MnO4-, not 2-.

    You're slacking charco!
    You are right. Would not have realized that, if you have nothing said. Eight reputation points for your attention.
 
 
 
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