hoa 11.on tap
Quiz
•
Chemistry
•
9th - 12th Grade
•
Medium
Dương Lãnh
Used 18+ times
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Chọn nguyên tử kim loai
F
O
Na
S
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu nguyên tố kim loại trong số các nguyên tố sau: O, K, Mg, Fe, H, Cu
2
3
1
4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu nguyên tố có hóa trị II trong các nguyên tố sau: Na, Cu, Fe, O, K
3
1
2
4
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trong các hợp chất sau, hợp chất nào là muối?
Ba(OH)2
KOH
CuSO4
HCl
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Chọn hợp chất là axit
CH3COOH
KNO3
Fe(OH)2
NH4Cl
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Có bao nhiêu hợp chát là axit trong các chất dưới đây:
HCl, CH3COOH, NaOH, NH4NO3, H2SO4
3
5
2
4
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Gốc axit có hóa trị II trong các gốc sau:
Cl, SO4, NO3, CO3
1
2
3
4
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