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Authored by Thị Trần
Chemistry
8th Grade
Used 4+ times
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15 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trị của nguyên tố Na là
I
II
III
nhiều hóa trị
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trị của nguyên tố Al là
I
II
III
nhiều hóa trị
3.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Hóa trị của nguyên tố O là
I
II
III
IV
4.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
Kí hiệu hóa học và hóa trị của nguyên tố chlorine là
Cl, I
Cr, II
Cl, II
C, IV
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trị của nguyên tố Fe là
II hoặc III
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Hóa trị của nguyên tố Ca là
I
II
III
IV
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
Tên và hóa trị của nguyên tố có kí hiệu hóa học Ba là
Bo, III
Barium, II
Bạc, I
Beryllium, II
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