Ôn giữa kỳ Hóa 8 KNTT
Quiz
•
Chemistry
•
8th Grade
•
Practice Problem
•
Hard
Nhung Phương
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18 questions
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1.
MULTIPLE CHOICE QUESTION
5 sec • 1 pt
Ở đkc, 1 mol của bất kỳ chất khí nào đều chiếm một thể tích là
A. 24,79 lít
B. 49,58 lít
C. 24,2 lít
D. 42,4 lít
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Khối lượng của 0,15 mol NO2 là:
A. 3,45 gam
B. 4,6 gam
C. 6,9 gam
D. 2,3 gam
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Số mol ứng với 0,64 gam khí sunfurơ SO2 là:
A. 0,2 mol
B. 0,5 mol
C. 0,01 mol
D. 0,1 mol
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Số nguyên tử Iron (Fe) có trong 280 gam Iron là:
20,11 . 1023
25,1 . 1023
30,11 . 1023
35,1 . 1023
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trong 1 mol H2O chứa bao nhiêu nguyên tử hydrogen
3,011 . 106
9,033 . 1023
12,044 . 1023
6,022 . 1023
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Thể tích (đkc) của 2 mol khí oxygen O2 là:
11,2 lít
74,37 lít
49,58 lít
24,79 lít
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Lấy cùng một lượng m gam mỗi chất sau, chất nào có số mol lớn nhất:
Zn
Ca
Na
Cu
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