A.混合液中c(SO42-)为0.04 mol∙L-1 |
B.原Al2(SO4)3溶液中c(Al 3+)与100 mL 0.02 mol∙L-1Al (NO3)3中c(Al 3+)相等 |
C.混合后的溶液中含有0.003 molNa+ |
D.混合后溶液中c(Na+)为0.02mol/L |
A.c1=2c2 | B.c1>2c2 | C.c1<2c2 | D.c2<c1<2c2 |
A.10 mL H2O | B.0.8 mol H2SO4 | C.54 g Al | D.1g CaCO3 |
A.M g | B.1/M g |
C.M/6.02×1023g | D.6.02×1023/M g |
A.H2 | B.HCl | C.SO2 | D.CO2 |
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