bài này khó quá ai có thể chỉ em với ạ

các cậu giúp tớ bài này ạ . thanks các bạn nhiều

Tha Này ! Tha này ! là thuộc kiểu câu gì văn bản chị dậu

1) Cho 20,8g hỗn hợp gồm axit axetic và etyl axetat tác dụng vừa đủ với 300g dung dịch NaOH 4%. Phần trăm khối lượng của etyl axetat trong hỗn hợp bằng? 2) Đun 12 gam axit axetic với 9,6 gam ancol metylic ( có H2SO4 đặc làm xúc tác) đến khi phản ứng đạt tới trạng thái cân bằng thu được 11 gam este. Hiệu suất của phản ứng este hoá là

thuyết minh về chiếc áo dài việt nam

(-5).-6/13.-9/10.(-13/16)Và (17/18.51/36).3/5

11. ‘Who would like to be in charge _____cooking the dinner?’‘I will. I don’t mind doing that.’ * A. of B. with C. for D. to 12. I _______ in the park when it started to rain. * A. walked B. had walked C. walk D. was walking 13. ‘_____a good time at the party?’ - ‘Not really. I was bored!’ * A. Did you have B. Have you C. Had you D. Will you have 14. It was _____bad day that we decided to stay at home. * A. so B. too C. such a D. such 15. Oh, the case is too heavy for you. I___________ you. * A. ’ll help B. help C. am going to help D. helped 16. The man ___________ to safety was terribly injured. * A. who was lifting B. lifted C. lifting D. having been lifted 17. I want to see a horror movie. _______ does my sister. * A. Too B. So C. Either D. Neither 18. I woke up late this morning because I __________ about the exam all night and didn’t sleep well. * A. worried B. was being worried C. have got worrying D. have been worrying 19. If I’d known you were coming, I __________ some tea. * A. would have prepared B. would prepare C. will prepare D. prepared 20. More than 80 people came to the exhibition, many of __________ children had pictures on the walls. * A. who B. whom C. whose D. which

tmf x nha cần gấp nhanh nhanh 5 sao

6.Medical help is .............................. easily obtained in remote areas than in towns. A. more B. fewer C. less D. higher 7.Today Peter gets up .............................than he did yesterday. A. earlier B. more early C. more earlily D. more earlier 8.He seems to be ..............................than we thought. A. more quick B. more quickly C. quicklier D. quicker 9.The wind is blowing ............................ than it did last night. A. stronger B. more strongly C. stronglier D. more stronger 10. Is living in the city............................. than living in the country? A. more convenient B. as convenient C. most convenient D. so convenien

Tìm T T - 100 - (T-150)/4 = T - 100 - ( T -150)/2