What is the oxidation number of each atom in sodium hydrogen carbonate,NaHCO3?
A) Na = +1, H = -1, C = +6,O = -2
B) Na = +1, H = +1, C = +4,O = -2
C) Na = +1, H = -1, C = +2,O = -2
D) Na = -1, H = +1, C = 0,O = -2
E) Na = 0, H = 0, C = 0,O = 0
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