A.36.5% B.26.5% C.2.6% D.3.6%
A.溶液:溶質(zhì)=21:1 B.溶質(zhì):溶液=1:20 C.溶劑:溶質(zhì)=19:1 D.溶液:溶劑=20:21
A.CaCO3:0.0013g B.NaCl:36g C.KClO3:7.4g D.Ca(OH)2:0.17g