
Hóa trị, CTPT
Authored by Uyen Ngo
Chemistry
8th Grade
Used 22+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trịcủa nhômtrong hợp chất Al2O3 là
2.
3.
6.
4.
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố nào sau đây có hóa trị II trong các hợp chất?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Nguyên tố nitơ có hóa trị 4 trong oxit nào sau đây?
NO2.
NO.
N2O5.
N2O.
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hợp chất Zn(NO3)2, nguyên tố Zn có hóa trị
4.
3.
2.
1.
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hợp chất tạo bởi Ca và Cl có công thức là
Ca2Cl3.
CaCl.
CaCl2.
Ca2Cl7.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Phân tử oxit nào sau đây có 3 nguyên tử oxi?
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
X là hợp chất khí tạo bởi clo với hiđro. Phân tử khối của X là
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