
Câu hỏi Hóa học
Authored by Ha Tran
Science
8th Grade
Used 1+ times

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16 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dung dịch chất nào sau đây có pH > 7?
NaCl.
HCl.
Ca(OH)2.
H2SO4.
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Kim loại Fe phản ứng với CuSO4 trong dung dịch sinh ra sản phẩm là
FeSO4 và Cu.
CuSO4 và H2.
FeS và CuO.
Fe(OH)2 và H2.
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây thuộc loại oxide?
Ba(NO3)2.
Al2O3.
H2SO4.
Ca(OH)2.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Hợp chất có công thức NaOH có tên gọi là
sodium oxide.
sodium hydroxide.
sodium oxygen hydrogen.
sodium hydro oxide.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Sulfur dioxide (SO2) được sinh ra từ phản ứng giữa các chất nào sau đây?
C + O2.
S + O2.
Mg + O2.
Fe + S.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Dung dịch MgCl2 được tạo thành do kim loại Mg tác dụng với dung dịch chất nào sau đây?
NaOH.
AgNO3.
FeSO4.
HCl.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Chất nào sau đây là base?
Ca(OH)2.
CaO.
CaCl2.
Ca(NO3)2.
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