
CHỦ ĐỀ MUỐI
Authored by oanh Vang
Chemistry
2nd Grade
Used 9+ times

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25 questions
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1.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Hợp chất nào sau đây là muối
NaCl
KOH
CuSO4
HCl
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
NaOH rắn có khả năng hút nước rất mạnh nên có thể dùng làm khô một số chất. NaOH làm khô khí ẩm nào sau đây?
H2S
H2
CO2
SO2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để nhận biết muối sunfat( muối có gốc SO4 ) người ta dùng muối nào sau đây ?
BaCl2
NaCl
CaCl2
MgCl2
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Cho phương trình phản ứng Na2CO3+ 2HCl -> 2NaCl + X +H2O . Vậy X là:
CO
CO2
H2
Cl2
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Các Cặp chất nào sau đây không xảy ra phản ứng?
1/ CaCl2 + Na2CO3
2/ CaCO3 + NaCl
3/ NaOH + HCl
4/ NaOH + KCl
1 và 2
2 và 3
3 và 4
2 và 4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng nào dưới đây là phản ứng trao đổi?
2Na + 2H2O -> 2NaOH + H2
BaO + H2O -> Ba(OH)2
Zn + H2SO4 -> ZnSO4 + H2
BaCl2+ H2SO4 ->BaSO4+ 2HCl
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Lưu huỳnh đioxit được tạo thành từ phản ứng của cặp chất:
Na2SO4 + CuCl2
K2SO3 + HCl
Na2SO3 + NaCl
K2SO4 + HCl
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