
Ôn KT giữa kì 1 Hóa =))
Quiz
•
Chemistry
•
12th Grade - University
•
Medium
Trà Nguyễn
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17 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Kí hiệu biểu diễn hai nguyên tử oxi là
O2
2O
2O2
O3
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Cách biểu diễn 4H2 có nghĩa là
8 nguyên tử hiđro
4 nguyên tử hiđro
8 phân tử hiđro
4 phân tử hiđro
3.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nguyên tử S có hoá trị VI trong phân tử chất nào?
SO2
SO3
H2S
CaS
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
S trong hợp chất nào sau đây có hóa trị IV?
S2O3
S2O2
SO3
SO2
5.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Dãy chất sau đây đều là hợp chất?
Cl2, Cu, Fe, Al
Cl2, KOH, H2SO4, AlCl3
CuO, KOH, H2SO4, AlCl3
CuO, KOH, Fe, H2SO4
6.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Trong số các chất: HCl, H2, NaOH, KMnO4, O2, NaClO có mấy chất là hợp chất?
4
6
5
3
7.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Công thức nào dưới đây viết đúng?
CaBr3
Na2NO3
AlCl2
MgCl2
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