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duongtuan894
2 năm trước
Câu 10: Phát biểu nào sau đây về oxi là không đúng? A.Oxi là phi kim hoạt động hoá học rất mạnh, nhất là ở nhịêt độ cao . B.Oxi tạo oxit axit với hầu hết kim loại . C.Oxi không có mùi và vị . D.Oxi cần thiết cho sự sống .
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