Bài 6 CHTT hóa trị
7th Grade
•30 Qs
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Bài 6 CHTT hóa trị
Quiz
•
Chemistry
•
7th Grade
•
Medium
Lê Phần
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30 questions
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1.
FILL IN THE BLANK QUESTION
1 min • 1 pt
% khối lượng của C trong CH4 là .... %
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
% khối lượng của Ca trong Calcium carbonate là .... %
3.
FILL IN THE BLANK QUESTION
1 min • 1 pt
% khối lượng của Cu trong Copper (II) sulfate là .... %
4.
FILL IN THE BLANK QUESTION
1 min • 1 pt
% khối lượng của Fe trong iron (III) sulfate là ........ %
5.
FILL IN THE BLANK QUESTION
1 min • 1 pt
% khối lượng của Cu trong Copper (II) oxide là .... %
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
trong các chất sau, chất nào giàu Iron nhất
Iron (II) oxide
Iron (III) oxide
Iron (II.III) oxide (Fe3O4)
Iron (II) Sulfate
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
Đơn chất nào sau đây CTHH chính là kí hiệu
Sodium
Sulfur
Nitrogen
Neon
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