问题
选择题
No one likes him _____. [ ]
A. still
B. never
C. anymore
D. too
答案
C
No one likes him _____. [ ]
A. still
B. never
C. anymore
D. too
C
现有100g溶质质量分数为10%的KNO3溶液(不饱和),做下列改变后,溶液的溶质质量分数有何变化?将“变大”、“变小”或“不变”分别填入下面的空格内.
改变方法 | 溶质质量分数变化情况 |
倒出20g溶液 | ______ |
加10gKNO3 | ______ |
加10g水 | ______ |
蒸发10g水 | ______ |