Upper z n (s) plus 2 upper h upper c l (a q) right arrow upper z n upper c l subscript 2 (a q) plus upper h subscript 2 (g 0). which half reaction correctly describes the oxidation that is taking place?
a. upper z n superscript 2 plus (s) plus 2 e superscript minus (a q) right arrow upper z n (s).
b. upper z n (s) right arrow upper z n superscript 2 plus (a q) plus 2 e superscript minus.
c. upper h superscript plus, plus 2 e superscript minus right arrow upper h subscript 2.
d. upper h subscript 2 plus 2 e superscript minus right arrow 2 upper h superscript plus.
