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vuanhthu9a.tthaiha
2 năm trước
Giải chi tiết nha Cho 3,36 lít hỗn hợp etan và etilin dktc đi qua dung dịch brom dư .sau phản ứng khối lượng bình brom tăng thêm 2,8g . số mol etan và etilen trong hôn hợp lan lượt là. A. 0,05 va0,1 B.0,1 và 0,05 C. 0,12va 0,03 D. 0,03 và 0,12
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