.已知同温同浓度时①H2CO3比H2S电离度大,②H2S比HCO3-电离度大,则下列反应不正确的是()
(A)Na2CO3+H2S=NaHCO3+NaHS(B)Na2S+H2O+CO2=NaHS+NaHCO3
(C)2NaHCO3+H2S=Na2S+2H2O+2CO2(D)2NaHS+H2O+CO2=Na2CO3+2H2S
...D原因是什么?