2KMnO4+10NaBr+8H2SO4=2MnSO4+5Br2+5Na2SO4 +K2SO4+8H2O
Mn(+7)+5e=Mn(+2)║2-окисник
2Br(-1)-2e-Br2⁰ ║5-відновник
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2KMnO4+10NaBr+8H2SO4=2MnSO4+5Br2+5Na2SO4 +K2SO4+8H2O
Mn(+7)+5e=Mn(+2)║2-окисник
2Br(-1)-2e-Br2⁰ ║5-відновник