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What number of electrons balances the charges in this half reaction


so2 +2h2o so {4}^(2 -) + 4h +

User Kempton
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1 Answer

3 votes

Answer : Two electrons balances the charges in this half reaction.

Explanation :

The given half reaction is,


SO_2+2H_2O\rightarrow SO^(2-)_4+4H^+

In this half reaction, there is no charges present on the left side of the reaction but on right side of the reaction, (2+) charge is present. So, two electrons (2-) are added on the right side of the reaction for balances the charge of the half reaction.

The balanced half reaction is,


SO_2+2H_2O\rightarrow SO^(2-)_4+4H^++2e^-

Hence, two electrons balances the charges in this half reaction.

User Vijay Masiwal
by
8.5k points
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