HÓA TRỊ NGUYÊN TỐ - NHÓM NGUYÊN TỬ
Quiz
•
Chemistry
•
6th - 8th Grade
•
Practice Problem
•
Easy
Hải Văn
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20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Hóa trị của Na và K trong các hợp chất là:
I; I
I; II
II; I
II, III
2.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Hóa trị của Fe trong các hợp chất là:
II
III
II hoặc I
II hoặc III
3.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Trong hợp chất, H và O có hóa trị lần lượt là:
I; I
I; II
II; I
II; III
4.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Dãy các nguyên tố kim loại có hóa trị II là
Ba, Ca, Mg
Al, Mg, Ca
Na, Al, Fe
K, Ca, Mg
5.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nhóm NO3 có hóa trị là:
I
II
III
IV
6.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nhóm CO3 và nhóm SO4 có hóa trị là
I
II
III
IV
7.
MULTIPLE CHOICE QUESTION
20 sec • 5 pts
Nhóm PO4 có hóa trị là
I
II
III
IV
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