Wednesday
April 23, 2014

Homework Help: chemistry

Posted by george on Thursday, November 4, 2010 at 11:49pm.

In the REDOX reaction in basic solution
Zn-->Zn(OH)4+H2
I know that the first half reaction is
4H20+Zn-->Zn(OH)4 +4H+e

but the second one
is either
2e+2H2O--->H2+2OH
(WHICH IS THE ANSWER GIVEN ON THE WORKSHEET)
OR
2e+2H-->H2
I think both leads to the same answer=

2OH+Zn+2H20-->Zn(OH)4 +H2
but I'm not sure if I should add OH instead of H protons since it is a reaction in basic solution.
Someone can help me?

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