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nguyenvanthuan446
1 năm trước
Cho 0,896 lít khí gồm metan và etilen đi qua dung dịch brom dư, thấy dung dịch nhạt màu và còn 0,672 lít khí thoát ra. Các thể tích khí đo ở điều kiện tiêu chuẩn. a.Viết PTPƯ xảy ra? b.Tính khối lượng bom tham gia phản ứng? b.Tính thành phần phần trăm thể tích của khí metan trong hỗn hợp đầu?
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Các câu hỏi liên quan

I. Choose the best word or phrase to complete each sentence or do as direct 1. A film that is set in the future, often featuring science:(thriller/ animation/ science-fiction). 2. A film that combines comedy with love story: (action/ romantic comedy/ horror). 3. They found the end of the film (moved/ moving/ bored) 4. Crictics were (disappointed/ disappointing/ terrifying) at the performance as King Leader 5(Although/ Despite/ In spite of)the story of the film was good, I didn’t like the acting-out. 6I went to see the flim (although/ though/ in spite of)feeling really tired. 7. She used (to ride/ ride/ riding)a tricycle when she was a child. 8. Did you (use to/ used to/ used)play hide-and-seek when you are small? 9. We always wear a (light/ seatbelt/ helmet/ sign) when we ride motobineuse 10 My father usually (sails/ drives/ fly/ goes) his car to work. 11. (However/ In spite of/ Although/ Despite) the film was gripping, Tom slept from beginning to end. 12. (There/ This/ That/ It) is not very far from here to the post office. 13. I think this film will be liked by people who are interested in true stories:(Horror/ Documentary/ Comedy/ Action) 14. They are excited (at/about/ of/ with) the film. 15. Choose the word that has underlined part pronounced differently from the others (stopped/ washed/ fastened/ walked). 16. Choose the word that has underlined part pronounced differently from the others (head/ great/ death/ bread).

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