oxit and axit
Authored by Nhung Trần
Chemistry
2nd Grade
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Dãy nào gồm các kim loại đứng trước Hidro trong dãy hoạt động hóa học
Fe, Cu, Mg, Na
Ba, Zn, Fe, Ag
K, Ca, Au, Pb
Ba, Mg, Zn, Fe
2.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
P2O5 không phản ứng ứng với
CaO
Na2O
CuO
K2O
3.
FILL IN THE BLANK QUESTION
1 min • 5 pts
H3PO4 thuộc loại chất nào : oxit, axit, bazo, muối
4.
MULTIPLE CHOICE QUESTION
30 sec • 5 pts
Axit thường có
Nhóm OH phía sau
Có H ở đầu
Có oxi
Có S
5.
FILL IN THE BLANK QUESTION
1 min • 5 pts
Cho 4,05 gam nhôm tác dụng với axit clohidric thu được V lít khí. V bằng... lít
6.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
400g dung dịch axit sunfuric có chứa 0,2 mol axit sunfuric. Tính nồng độ phần trăm dung dịch
4,9%
24,5%
0,2%
9,8%
7.
FILL IN THE BLANK QUESTION
1 min • 5 pts
CaO tác dụng được với bao nhiêu chất trong dãy sau: CO2; CuO; HCl, NaOH, Fe2O3, H3PO4, SO3
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