
Đề cương hoá 9
Authored by thanh nguyen
Geography
5th Grade
Used 26+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các chất là oxit axit
SO2, CO2, N2O5
SO2, Al2O3, CO2
CO2, SO2, K2O
NO, SO2, P2O5
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các chất là oxit bazơ
CaO, CO, Al2O3
CuO, SO2, Na2O
CuO, CO, P2O5
K2O, MgO, Fe2O3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất là oxit lưỡng tính
Al2O3, ZnO, Cr2O3
CaO, ZnO, Cr2O3
PbO, Al2O3, K2O
Al2O3, MgO, PbO
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất tác dụng được với nước
CO2, CaO, Fe2O3
CO2, MgO, SO3
BaO, K2O, SO3
MgO, K2O, P2O5
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Oxit được dùng làm chất hút ẩm (chất làm khô) trong phòng thí nghiệm là
CuO
ZnO
PbO
CaO
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hai oxit tác dụng với nhau tạo thành muối là
CO2 và CaO
K2O và NO
Fe2O3 và SO3
MgO và C
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Vôi sống có công thức hóa học là
Ca
Ca(OH)2
CaCO3
CaO
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