设NA为阿伏加德罗常数,下列说法正确的是(     ) A、1molNH2-中含

NA为阿伏加德罗常数,下列说法正确的是(     )

A、1molNH2-中含有电子数为9NA

B、标准状况下,22.4LCO2和CO的混合气体中所含分子数小于NA

C、14gN2和CO的混合气体中所含原子数为NA

D、标准状况下,22.4L辛烷完全燃烧生成的二氧化碳分子数为8NA

答案

C

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