问题
选择题
下列事实中，不能用勒夏特列原理解释的是[ ]
A．对熟石灰的悬浊液加热，悬浊液中固体质量增加
B．实验室中常用排饱和食盐水的方式收集氯气
C．打开汽水瓶，有气泡从溶液中冒出
D．向稀盐酸中加入少量蒸馏水，盐酸中氢离子浓度降低
答案
答案：D
搜题请搜索小程序“爱下问搜题”
下列事实中，不能用勒夏特列原理解释的是[ ]
A．对熟石灰的悬浊液加热，悬浊液中固体质量增加
B．实验室中常用排饱和食盐水的方式收集氯气
C．打开汽水瓶，有气泡从溶液中冒出
D．向稀盐酸中加入少量蒸馏水，盐酸中氢离子浓度降低
答案：D
| 完成对话，把正确选项的字母代号写在横线上。 | |
Tony: 1 Where is your computer? Bob: 2 Do you have one? Tony: No, I don't. 3 Let's watch TV. Bob: No, it's boring. Let's play tennis. I have a tennis racket. Tony: Good. 4 Bob: On the sofa. Do you have a racket? Tony: No, I don't. But your sister has one. Bob: That's right. And she has a tennis ball. Tony: 5 |
