
KIỂM TRA HÓA 9A3 (11/12/2021)
Quiz
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Chemistry
•
Professional Development
•
Hard
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy các kim loại được sắp xếp theo chiều tính kim loại giảm dần là
Cu, Fe, Al, Mg, K
K, Mg, Al, Fe, Cu
K, Cu, Mg, Al, Fe
K, Fe, Cu, Al, Mg
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất có phản ứng với kim loại nhôm
Fe, CuCl2, MgSO4
HCl, NaCl, NaNO3
NaCl, NaOH, MgCl2
NaOH, HCl, CuSO4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm toàn oxit
NaOH, HCl, CuO
Na2O, MgO, SO2
NaCl, MgO, Na2CO3
SO2, Cu(OH)2, H2SO4
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chất làm quỳ tím hóa đỏ
NaCl
HCl
NaOH
Na2CO3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Al + CuSO4 -> ............ + Cu. Chất thích hợp trong dấu ba chấm là
Al2(SO4)3
AlSO4
Al3(SO4)2
Al(SO4)3
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hiện tượng xảy ra khi cho dung dịch NaOH vào ống nghiệm đựng sẵn 1 dây nhôm
không hiện tượng
xuất hiện kết tủa trắng
sủi bọt khí
xuất hiện kết tủa trắng xanh
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phương trình hóa học đúng của phản ứng nhiệt phân Fe(OH)3 là
2Fe(OH)3 -> 2FeO + O2 + 3H2
2Fe(OH)3 -> Fe2O3 + 3H2O
2Fe(OH)3 + O2 -> Fe2O3 + 3H2O
2Fe(OH)3 -> 2FeO + 3H2O
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