A.稀溶液的依數(shù)性與溶質的粒子數(shù)有關 B.稀溶液的依數(shù)性與溶劑有關 C.難揮發(fā)非電解質稀溶液的沸點低于難揮發(fā)電解質稀溶液 D.濃溶液的凝固點比純溶劑的凝固點低
A.H2NCH2NH2 B.H2NCH2CH2CH2CH2NH2 C.H2NCH2CH2NH2 D.H2NCH2CH2CH2CH2CH2CH2NH2
A.MgSO4 B.Al2(SO4)3 C.CH3COOH D.K2SO4