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Half reaction chemistry?
The half-reaction for the reduction of molecular oxygen to water in acid solution is __________
A. 2H2O(l) ---> O2(g) + 4 H+(g) + 4e–.
B. O2(g) + 2H2(g) ---> 2H2O(l).
C. O2(g) + 2H2(g) + 4e– ---> 2H2O(l).
D. O2(g) + 4 H+(g) + 4e– ---> 2H2O(l).
E. O2(g) + 4 H+(g) ---> 2H2O(l) + 4e–.
I tried setting up the half reaction but i didnt get their choices...
and the acid solution would contain the H+?
The answer is D
Someone kindly explain how solve it
thank you
1 Answer
- Roger the MoleLv 75 years agoFavorite Answer
A. does not have molecular oxygen on the left, so it is wrong.
"Acid solution" includes H+, so B. and C. are wrong.
The charges don't balance in E. so it's not even a balanced equation.
D. is all that remains.
