
đề ôn số 2 hk2 khối 12

Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Quốc Trần
Used 2+ times
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40 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
KNO3
NaOH
CuSO4
HCl
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
K2SO3
K2CO3
KHCO3
KHSO4
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Al(NO3)3
Al(OH)3
AlCl3
Al2O3
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
KNO3
NaCl
Ca(OH)2
H2SO4 đặc, nguội
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong hợp chất Al(OH)3, nhôm có số oxi hóa là
+1
+2
+3
-2
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nhiệt phân Fe(OH)2 trong không khí đến khối lượng không đổi, thu được chất rắn là
Fe
Fe3O4
FeO
Fe2O3
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