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KT Hóa

5

1

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Nguyễn Thị Ngọc Tươi

Ask a quiz question and write the options. Participants try to choose the correct answer to score points.

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Slides (5)

1 - Pick Answer

Câu 1:        Chất bị oxi hoá là

2 - Pick Answer

Câu 2:        Sulfur trong hợp chất nào sau đây có số oxi hoá là +4?

3 - Pick Answer

Câu 3:        Quy tắc xác định số oxi hoá nào sau đây là không đúng?

4 - Pick Answer

Câu 4:        Cho các phản ứng hóa học sau, phản ứng nào chứng minh Cl2 có tính oxi hóa mạnh hơn Br2?

5 - Pick Answer

Câu 5:        Phản ứng hóa học xảy ra trong thí nghiệm nào sau đây là phản ứng oxi hoá – khử?

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