題目列表(包括答案和解析)
A.溶液中溶質(zhì)質(zhì)量增多,溶液的質(zhì)量減少 |
B.溶液中溶質(zhì)質(zhì)量增多,溶液的質(zhì)量增加 |
C.溶液中水的質(zhì)量減少,溶質(zhì)質(zhì)量分?jǐn)?shù)不變 |
D.溶液中水的質(zhì)量減少,溶質(zhì)質(zhì)量分?jǐn)?shù)增大 |
已知:Na2O + H2O = 2NaOH,向飽和的氫氧化鈉溶液中加入一定量的Na2O,充分反應(yīng)后恢復(fù)到原來溫度。下列說法中,正確的是
A.溶質(zhì)質(zhì)量增多,溶液的質(zhì)量減少
B.溶質(zhì)質(zhì)量增多,溶液的質(zhì)量增加
C.溶劑的質(zhì)量減少,溶質(zhì)質(zhì)量分?jǐn)?shù)不變
D.溶劑的質(zhì)量減少,溶質(zhì)質(zhì)量分?jǐn)?shù)增大
A.溶質(zhì)質(zhì)量增多,溶液的質(zhì)量減少 |
B.溶質(zhì)質(zhì)量增多,溶液的質(zhì)量增加 |
C.溶劑的質(zhì)量減少,溶質(zhì)質(zhì)量分?jǐn)?shù)不變 |
D.溶劑的質(zhì)量減少,溶質(zhì)質(zhì)量分?jǐn)?shù)增大 |
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