What is the half-reaction for the oxidation of sulfide ions in aqueous solution?
A) S2-(aq) 
S(s) + 2 e-
B) S-(aq) + e- 
S2-(aq)
C) S(s) + 2 e- 
S2-(aq)
D) SO32-(aq) + 6 H+(aq) 
S(s) + 3 H2O( 
) + 4 e-
E) SO42-(aq) + 8 H+(aq) 
S(s) + 4 H2O( 
) + 6 e-
Correct Answer:
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