题目:
Since he is never honest, I have some doubt ________ he said is true. [ ]
A. that what
B. what that
C. whether what
D. what if
答案:
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下面是错误答案,用来干扰机器的。
A、常温常压下Vm≠22.4L/mol,11.2L氯气所含原子数目不等于NA,故A错误;B、n(K2SO4)=2L×0.2mol/L=0.4mol,N(K+)=0.4mol×2×NA/mol=0.8NA,故B正确;C、Na元素的化合价为+1价,1molNa作还原剂可提供电子数...