
HÓA 9 HK1
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Chemistry
9th Grade
Used 62+ times

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20 questions
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1.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Kim loại tác dụng với nước
Ag, Al
Zn, Na
Cu, Fe
K, Na
2.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Cho phương trình hóa học sau : 2Al + aH2SO4 → Al2(SO4)3 + aH2. Hệ số a có giá trị là ?
1
2
3
4
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Nhúng quỳ tím vào dung dịch NaOH thì quỳ tím chuyển sang màu :
Đỏ
Xanh
Vàng
Không đổi màu
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Kim loại magie (Mg) tác dụng với H2SO4 loãng sinh ra khí ?
H2
CO2
SO2
O2
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Trong các dãy chất sau, dãy nào là muối ?
NaCl, Na2SO4
K2SO4, H2SO4
HCl, H2SO4
NaCl, Na2O
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Axit H2SO4 loãng không tác dụng với kim loại nào sau đây:
Al
Fe
Mg
Ag
7.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Nhóm chất nào sau đây thuộc loại axit ?
BaSO4, HNO3
SO2, NaCl
HCl, HNO3
KCl, NaOH
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