Chất nào sau đây là base?
trắc nghiệm hóa 8

Quiz
•
Others
•
8th Grade
•
Easy
Hoàng Anh Vũ
Used 3+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ba(OH)₂
H₂SO₄
HCl
CH₃COOH
2.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
Phản ứng nào sau đây 𝐊𝐇𝐎𝐍𝐆 tạo ra muối?
Acid tác dụng với oxide base
Base tác dụng với oxide acid
Kim loại tác dụng với oxygen
Acid tác dụng với base
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
Khí Cl₂ nặng hơn khí H₂ bao nhiêu lần?
40
35,5
37,5
38
4.
MULTIPLE CHOICE QUESTION
45 sec • 3 pts
Cho PTHH K₂O+CO₂->K₂CO₃.Nếu CO₂ 1 mol thì K₂CO₃ sẽ là bao nhiêu mol?
1 mol
1,5 mol
2 mol
3 mol
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Sử dụng bảng tính tan và cho biết base nào không tan?
KOH
Mg(OH)₂
NaOH
Ca(OH)₂
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Ở điều kiện chuẩn,1 mol khí bất kì chiếm 24,79 lít.Vậy điều kiện chuẩn là điều kiện gì?
25°C,1 bar
26°C,1 bar
25,5°C,1 bar
24°C,1 bar
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức tính thể tích
V=n×29,74
V=n×24,79
V=n:29,74
V=n×26,78
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