Để trung hoà 46g hchc X.Y thuộc dãy đồng đẳng của phenol cần dùng 480g NaOH 1M. Tìm ctpt X và Y bk MY:MX=61/47

Giải được bài nào giải hộ mik sớm với Mai phải nộp mà hông bt làm

giúp mình nhanh nha. mình cảm ơn

giúp em với ạ em cảm ơn ạ tẹo em phải nộp rồi ạ

Turkey is one of the ..................foods at Thanksgiving in the US. A. Easter B. serious C. culture D. traditiona

Cm CL vuông góc HN ai giải giùm em vs ạ Em cảm ơn nhiều lắm

giúp em với em đang cần gấp =(((

-VOTE 5* II. Find the word with different stress in each line 1. A. cycling B. reverse C. neighbor D. signal 2. A. narrow B. bumpy C. across D. licence 3. A. illegal B. opinion C. pavement D. prohibit 4. A. obey B. present C. whistle D. playground 5. A. pagoda B. safety C. accident D. buffalo III. Read the passage and answer the questions The most common traffic problem in cities around the world is traffic jams. Sao Paulo in Brazil has the world’s worst daily traffic jams. According to reports, the historical congestion record was set on June 1, 2012, with 295 kilometres of vehicle queues around the city during the evening rush hour. Some other big cities also suffer from serious congestion in the rush hour. The main cause of this traffic problem is the increase of the population in big cities. So the number of people using the roads has risen several times. The second reason is that the roads are narrow and sometimes are not good enough. Also, many road users have no respect for traffic rules. As a result, this problem is getting worse and worse. 1. What is the most popular traffic problem around the world? ……………………………………………………………………………………………………….. 2. Does Sao Paulo in Brazil have the worst traffic jams? ……………………………………………………………………………………………………….. 3. When do big cities suffer from traffic jams? ………………………………………………………………………………………………………. 4. What is the main cause of the traffic problem? ……………………………………………………………………………………………………….. 5. According to the passage, do many road users obey traffic rules? ………………………………………………………………………………………………………... IV 11. …………………..does it take you to go from Ha Noi to Ho Chi Minh City by plane? A. How far B. How much C. How long D. How many 12. There……………a bus station in the city center, but it has been move to the suburbs. A. used to be B. used to have C. use to have D. were 13. Newton ………………scientific books when he was a little boy. A. used to read B. has read C. had read D. reads 14. You should look right and left when you go……………..the road. A. along B. up C. down D. across 15. Does your bike ever ………………….down on the way to school? A. break B. take C. do D. turn

phân tichs chủ vị Cánh đồng xanh mát đượm hương đồng gió nội của một vùng quê thanh bình yên tĩnhchính là chỗ dừng chân lí tưởng của anh chàng Dế Mèn.

Giúp mình vs nha <3(Mình cảm ơn)