A.100mL1mol/LAl2(SO4)3溶液中,所含Al3+的数目为0.2NA B.100mL1mol/L氨水中,所含NH的数目为0.1NA C.将1molN2和3molH2充入密闭容器,一定条件下充分反应,得到2NA个NH3分子 D.已知2H2(g)+O2(g)=2H2O(g) ΔH=-484kJ/mol,若反应放出242kJ热量,则形成2NA个共价键试题...
M1AH931 933 MH2 REV.31G PC104 Industirlal motherboard main board mainboard i3 i5 i7 CPU board original stock 100%testing No reviews yet1 sold Huizhou Xinyan Technology Co., Ltd.3 yrsCN Previous slideNext slide Previous slideNext slideKey attributes Industry-specific attributes type Embedded...
8.用NA表示阿伏伽德罗常数的值.下列叙述正确的是A.100mL 1mol/L Al2(SO4)3溶液中,阳离子总数少于0.2NAB.常温常压下,18.0 g重水(D2O)所含的电子数为NAC.8.0 g Cu2S和CuO的混合物中含有铜原子数为0.1NAD.在标准状况下,22.4L NO与11.2L O2混合后所得的气体含分子数为NA答案是选C,请说下为什么,我认为...