Problem: When the following half reaction is balanced under acidic conditions, what are the coefficients of the species shown? H2SO3 + H2O → SO42- + H- In the above half reaction, the oxidation state of sulfur changes from ________ to ________ .

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When the following half reaction is balanced under acidic conditions, what are the coefficients of the species shown? 

H2SO3 + H2O → SO42- + H- 

In the above half reaction, the oxidation state of sulfur changes from ________ to ________ .

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