题目

NA表示阿伏加德罗常数，下列叙述正确的是 A．lmol FeI2与足量氯气反应时转移的电子数为2NA B．2 L0.5 mol • L－1硫酸钾溶液中阴离子所带电荷数为NA C．1 mol Na2O2固体中含离子总数为4NA D．丙烯和环丙烷组成的42 g混合气体中氢原子的个数为6 NA 答案：Neither ________ abroad, nor ________ to go abroad.A.is he, will he wantB.he has been, he wantsC.has he been, does he wantD.has he been, he wants