2022大学慕课答案 Analytical Chemistry Experiment(Dalian University of Technology) 最新大学MOOC满分章节测试答案
本答案对应课程为:点我自动跳转查看
本课程起止时间为:2020-10-19到2021-01-25
Charper1 Course Introduction Laboratory Safety Test
1、 问题:Which of the following operations exists insecurity?
选项：
A:Experiments using volatile reagents and toxic gases should be conducted in a fume hood.
B:When opening a volatile reagent bottle, do not face the face or other people, it should be carried out in a fume hood.
C:When diluting concentrated sulfuric acid, the water should be slowly poured into concentrated sulfuric acid and continuously stirred.
D: When diluting concentrated sulfuric acid, the concentrated sulfuric acid should be poured slowly into the water and continuously stirred.
答案: 【When diluting concentrated sulfuric acid, the water should be slowly poured into concentrated sulfuric acid and continuously stirred. 点我阅读全文
