Balance the equation by using half reaction method.
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you didn't mention in which medium balance this equation ,
I will balance this equation in acid medium ,
MnO4- +4H+ ------> MnO2 +2H2O -4e^-
SO3-2 +H2O --------> SO4-2 +2H+ +2e^-
2nd equation multiply by two and add with 1st half reaction .
e.g
MnO4- +2SO3-2 ------> MnO2 +2SO4-2
I will balance this equation in acid medium ,
MnO4- +4H+ ------> MnO2 +2H2O -4e^-
SO3-2 +H2O --------> SO4-2 +2H+ +2e^-
2nd equation multiply by two and add with 1st half reaction .
e.g
MnO4- +2SO3-2 ------> MnO2 +2SO4-2
SMARTHERMIONEGRANGER:
Balance this in Basic medium
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