
HÓA 8
Authored by Kim Nguyễn
Chemistry
8th Grade
Used 7+ times

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20 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Câu 1: Dãy chất nào đều là axit:
HCl, H2SO4, HNO3
Na2O, CaO, KOH
SO3, HCl, HBr
HBr, ZnO, SO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào đều là hợp chất bazơ
BaO, CO2, NaOH
KOH, Ca(OH)2, Mg(OH)2
Na2O, CaO, KOH
SO3, HCl, HBr
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào đều là hợp chất muối
BaO, CO2, NaOH
KOH, Ca(OH)2, Mg(OH)2
Na2O, CaO, KOH
BaCl2, Na2CO3, Al2(SO4)3
4.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Dung dịch làm quì tím chuyển sang màu xanh là:
K2SO4
H2SO4
KOH
NaCl
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Khí H2 tác dụng được với (có thể chọn nhiều đáp án):
Khí oxi
Nước
Kim loại
Oxit kim loại
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy chất nào sau đây chỉ gồm các đơn chất?
Fe(NO3), NO, C, S.
Mg, K, S, C, N2.
Fe, NO2, H2O.
Cu(NO3)2, KCl, HCl.
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Hình vẽ mô tả cách thu khí hiđro trong phòng thí nghiệm là:
1, 2
1,3
2,3
1,2,3
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