A.0.4mol、0.5mol、0.12mol | B.0.66mol、0.5mol、0.24mol |
C.0.64mol、0.5mol、0.24mol | D.0.64mol、0.02mol、0.24mol |
A.1:2:3 | B.3:2:1 | C.6:3:2 | D.2:3:6 |
A.1mol NO2与足量H2O反应,转移电子数为2NA |
B.1L0.5mol/L Na2CO3溶液中的阴离子数目小于0.5NA |
C.标准状况下,22.4L任意比的氢气与氧气的混合气体中含有的分子总数均为NA |
D.10g H218O中所含的中子数为4NA |
A.1 | B.0.5 | C.6.02×1023 | D.3.01×1023 |
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