Ôn tập KHTN 8 hoá học

Quiz
•
Science
•
8th Grade
•
Medium
Hieu Trung
Used 3+ times
FREE Resource
30 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Magnesium có kí hiệu hoá học là?
MG
Mg
ZN
Fe
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hoá trị của Cu là
I
II
III
VI
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hoá trị của nhóm OH là
I
II
III
IV
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hoá trị của nhóm NO3 là
I
II
III
IV
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức tính mol trên khối lượng là?
n = m/M
n = M/m
n = m/22,4
n = m/24,79
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức tính mol dựa vào thể tích ở đktc là?
n = v.22,4
n = v.24,79
n = v/22,4
n = v/M
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Công thức tính mol dựa vào thể tích ở đkc hay 25oC, 1 bar là?
n = v.24,79
n = v.22,4
n = v/24,79
n = v/22,4
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