Bài tập TN Hóa 7 số 7
Quiz
•
Chemistry
•
7th Grade
•
Medium
Nguyễn Long
Used 6+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hợp chất, nhóm (OH) luôn có hóa trị
I
II
III
IV
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Trong hợp chất, nhóm (PO4) luôn có hóa trị
I
II
III
IV
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức hóa học phù hợp với hóa trị IV của nitrogen là
N2O.
NO.
NO2.
N2O5.
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Công thức hóa học nào sau đây viết đúng?
Mg2O.
Al2O3.
AgO2.
KO.
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
Công thức hóa học nào sau đây viết sai?
NaNO3.
CaO.
K2CO3.
MgOH
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Tổng số nguyên tử trong 1 phân tử C6H12O6 là
6.
12.
18.
24.
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Khối lượng phân tử K2SO4 là
160.
174.
142.
176.
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