020200
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Hi,

My text book says that in an electrochemical cell where the LH electrode is the Standard Hydrogen Electrode (SHE), the equation in this half cell is 2H+(aq) + 2e- <-> H2(g). However, I thought oxidation occurred at the negative electrode, i.e hydrogen gas which is bubbled in would form 2H+ and 2e-. S, basically I thought the main reaction would be the reverse of the one shown above. Can someone explain why my text book has it in that format?

Thanks!
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BTAnonymous
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They are always given as reduction reactions.

The standard is an exception! When you write the conventional representation, it is always oxidised (on the left). It's just convention I guess.
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020200
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Hi,

But then how would the reaction occur if there is no oxidation at the negative electrode?
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