
Giữa kỳ hoá
Authored by Thư Dương
Chemistry
8th Grade
Used 16+ times

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41 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Câu nào đúng trong các câu sau
Khối lượng mol phân tử của hidro là 1đvC
Khối lượng mol phân tử của hidro là 1g/ mol
Khối lượng mol phân tử của hidro là 2đvC
Khối lượng mol phân tử của hidro là 2g/ mol
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
1 mol nước chứa chứa số phân tử là
6.10^23
12.10^23
18.10^23
24.10^23
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Số nguyên tử sắt có trong 280g sắt:
20.10^23
25.10^23
30.10^23
35.10^23
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
0, 20 mol
0, 25 mol
0, 30 mol
0, 35 mol
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
Trong 24g MgO có số mol là
0,5 mol
0,6 mol
1 mol
1,5 mol
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
40g
80g
98g
49g
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
36 g nước có số mol là
1 mol
1,5 mol
2 mol
4 mol
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