Which one is the excess reactant?

1.	Which one is the excess reactant?
A.	CH<sub>4</sub>
B.	O<sub>2</sub>
C.	Both CH<sub>4</sub> and O<sub>2</sub>
D.	Neither CH<sub>4</sub> nor O<sub>2</sub>
Answer» B. O<sub>2</sub>

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Which one is the excess reactant?

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