J2_第3章_溶解度曲线
Quiz
•
Science
•
8th - 9th Grade
•
Practice Problem
•
Medium
W.Y. Tan
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11 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
正确的是。。。
NaCl的溶解度不受温度的影响
KNO3的溶解度大于NaCl的溶解度
t1℃时,100 g KNO3的饱和溶液中含有20 g KNO3
t2℃时,NaCl的饱和溶液与KNO3的饱和溶液中溶质的质量分数相等
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
错误的是。。。
在30℃时,氢氧化钙的溶解度为0.20g
氢氧化钙的溶解度随温度升高而降低
升高温度可使氢氧化钙的不饱和溶液转化饱和溶液
增加溶质可使氢氧化钙的不饱和溶液转化为饱和溶液
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
不正确的是。。
硝酸钾的溶解度随温度升高而增大
t1℃时,氯化钠和硝酸钾的溶解度相同
将t2℃时的硝酸钾饱和溶液降温到t1℃,有晶体析出
t2℃时,80g硝酸钾溶于100g水中可制得饱和溶液
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
30℃时,将40g固体A和40g固体B分别充分溶解于100g水中,所得溶液的质量较大的是
A
B
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在10℃温度时,分别使100g A 和 B 饱和溶液中水分完全蒸发,得到固体质量较多的是
A
B
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
t1℃时,甲物质的溶解度 乙物质的溶解度
>
=
<
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
溶解度受温度影响变化较大的是 物质
甲
乙
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