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Câu 5: Đốt cháy hoàn toàn 10,2 gam hỗn hợp A gồm 2 ankan đồng đẳng kế tiếp cần dùng 25,76 lít khí O2 (ở đktc). a. Tính khối lượng CO2 và H2O sinh ra. b. Tìm CTPT của 2 ankan và tính thành phần phần trăm theo thể tích và theo khối lượng của mỗi ankan trong hỗn hợp. Câu 7: Viết PTHH các phản ứng xảy ra khi cho etilen, propen lần lượt tác dụng với các chất sau a. Hiđro/Ni,to b. Nước brom c. H2O/H+ d. Dung dịch KMnO4 Câu 8: Có một hiđrocacbon A là đồng đẳng của etilen. 11,2 gam hidrocacbon A có khả năng làm mất màu nước brom có chứa 32 gam brom. Tìm CTPT, viết các CTCT và gọi tên thay thế của A? Câu 9: Trình bày phương pháp hóa học nhận biết các hóa chất mất nhãn: ankan, anken, ank-1-in a. Các chất khí: etan, etilen, axetilen b. Các chất khí: metan, axetilen, propen c. Các chất lỏng: 2,2,3-trimetylbutan, hex-1-en, hex-1-in Mng giúp mk với ạ. Mk cảm ơn!
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