
HOÁ TRỊ
Authored by Võ Thuỳ
Chemistry
5th Grade
Used 82+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nguyên tố Kali ( K ), Natri ( Na ) hoá trị mấy?
I
II
III
IV
2.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Hoá trị của Ba, Ca, Mg là......
I
II
III
IV
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Trong hợp chất FeCl2, FeCl3, Fe( sắt ) hoá trị mấy?
II, III
III, IV
III, II
IV, III
4.
MULTIPLE CHOICE QUESTION
10 sec • 1 pt
Nguyên tố trên hoá trị mấy?
I
II
III
IV
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Hoá trị của gốc NO3, SO4, PO4 lần lượt là
I, II, III
II, I, III
III, II, I
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
Hoá trị của Cl là bao nhiêu trong các hợp chất sau: HCl, NaCl, MgCl2
I
II
III
IV
7.
MULTIPLE SELECT QUESTION
10 sec • 1 pt
Sắt có những hoá trị nào?( Có thể chọn nhiều đáp án)
I
II
III
IV
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