OXIT, HIDRO hóa 8
Quiz
•
Chemistry
•
6th - 8th Grade
•
Easy
Loan Vũ
Used 1+ times
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25 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Chỉ ra công thức viết sai : CaO, CuO, NaO, CO2, SO
CaO, CuO
NaO, CaO
NaO, SO
CuO, SO
2.
FILL IN THE BLANK QUESTION
10 sec • 1 pt
Trong các chất sau: Na2O, CO2, SO2, CaO, CuO, Al2O3. Các chất là oxit axit là
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Công thức hóa học của natri hidroxit là
Na2O
Na2CO3
NaOH
NaCl
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cho công thức hóa học của một sô chất sau: Cl2, O2, CuO, NaOH, Fe, H2SO4, AlCl3. Số đơn chất và hợp chất là:
2 đơn chất và 5 hợp chất.
4 đơn chất và 3 hợp chất.
3 đơn chất và 4 hợp chất.
5 đơn chất và 2 hợp chất.
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Dãy gồm các chất là oxit:
Na2O, HCl.
P2O5, NaOH.
CaO, Fe2O3.
SO3, H2SO4
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Oxit bắt buộc phải có nguyên tố
oxi.
hiđro.
clo.
lưu huỳnh.
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Chất dùng để điều chế oxi trong phòng thí nghiệm là
K2MnO4
CaCO3
H2O
KClO3
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