
Hóa học vui
Authored by Huyền Nguyễn
Chemistry
2nd Grade
Used 6+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Nguyên tử khối của sắt Fe là:
65đvC
64đvc
56đvC
207đvC
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây có tính dẻo?
Lưu huỳnh
Nhôm
Than
Photpho
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Chất nào sau đây có phân tử khối nhỏ nhất
MgO
CaO
Na2O
H2O
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Cách viết chỉ 2 phân tử ôxi
O2
2O2
2O3
2O
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Phân tử O2 nặng hơn phân tử H2
22 lần
8 lần
16 lần
32 lần
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Dãy nào sau đây toàn là kiml loại
Na, K, Cu, S
N, Mg, Ag, Ca
Ba, Fe, Al, C
Pb, Zn, K, Ag
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
CTHH của hợp chất được tạo bởi Mn (IV) và O
Mn2O4
Mn4O2
MnO2
Mn2O
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