Thí nghiệm điện phân NaCl
Interactive Video
•
Chemistry
•
12th Grade
•
Hard
vananh tran
FREE Resource
3 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa chất của thí nghiệm là
Dung dịch NaCl
Dung dịch KCl
Dung dịch HNO3
Dung dịch HCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khí thoát ra ở cathode là
H2
Cl2
O2
N2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dung dịch phenolphtalein có màu gì?
màu hồng
màu xanh
màu đỏ
màu tím
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