
Hóa 8 CK2.2 - 2018 (2)
Quiz
•
Business
•
9th Grade
•
Easy
Luna Jan
Used 1+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm toàn oxitaxit là
Na2O, CaO
N2O5, K2O
P2O5, Ag2O
SO2, SO3
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi đúng của Na2O là
Natri (I) oxit
Natri oxit
Đi natri oxit
Natri (II) oxit
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Dãy gồm toàn oxitbazo là
Na2O, CaO
N2O5, K2O
P2O5, Ag2O
SO2, SO3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong không khí, thể tích khí nito chiếm :
1%
21%
78%
90%
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tên gọi đúng của NO2 là
Nito (VI) oxit
Nito (II) oxit
Nito đi oxit
Nito tri oxit
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Để điều chế H2 trong phòng thí nghiệm
H2O + Cu
H2SO4 + CuO
H2SO4 + ZnO
HCl + Fe
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Phản ứng phân hủy là
2KClO3 → 2KCl + 3O2
CaO + H2O → Ca(OH)2
Cu(OH)2 +2 HCl → CuCl2 + 2H2O
Zn + 2 HCl → ZnCl2 + H2
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