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irina1246 [14]
3 years ago
10

What number of electrons balances the charges in this half reaction

Chemistry
1 answer:
Digiron [165]3 years ago
6 0

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.

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