user-avatar
hathugiang99
2 năm trước
1)Viết CTCT và gọi tên thay thế các đồng phân ANKAĐIEN LIÊN HỢP có CTPT C4H6 và C5H8 2)............................................................................ANKIN có CTPT là C5H8 giải chi tiết giùm em ạ em cảm ơn
Thích Trả lời Chia sẻ

Các câu hỏi liên quan

Giúp với tối là nộp r huhu V. Supply the correct tense of the words given in each blanket. 1. Four countries ______________ (visit) by John so far. 2. London ______________ (have) a population of eight million people. 3. The Statue of Liberty in New York is a monument which ______________ (symbolize) freedom. 4. Vietnam’s Independence Day ________________ (celebrate) on September 09th. 5. We ______________ (visit) Sydney Opera House for several times. 6. Some activities ______________ (prepare) to celebrate the lunar new year now. VI. Choose the correct answer A, B, or C to complete each of the sentences. 1.Alaska is perhaps the most …………… state in the USA. It has over three million lakes. A. puzzling B. festive C. amazing 2.The old tradition of first- footing is still practiced today in …………………….. A. Scottish B. Scots C. Scotland 3.In Canada, the serving of coffee at the end of an evening is a signal that it is time for ……….. A. visitors B. tourists C holiday makers 4.The Maori in New Zealand greet each other by ……………………….. their noses. A. punching B. touching C. blowing 5. Australia is composed of seven ………………….. A. nations B. countries C. states 6.There is a red maple leaf on the ………………… of Canada. A. flag B. banner C. money VII. Read the passage and answer these questions below: England is not a large country. No town in England is very far from the sea, and many English families spend their summer holidays at the seaside. There are no high mountains in England, no very long rivers and very large forests. There are many towns in England. No town is very far from another. The English countryside between the towns is like a carpets of many colors. In Spring and summer, the fields, meadows and forests are light green or dark green, and the gardens are green , red, blue, yellow and white with flowers. Questions 1.Is England a large country? .................................................................................................................................................. 2. Where do many English families spend their summer holidays? .................................................................................................................................................. 3. Are there many towns in England? .................................................................................................................................................. 4. What is the English countryside like? .................................................................................................................................................. VIII. Rewrite the sentences below without changing their original meaning. 1. Radioactive pollution is very dangerous. It can cause abnormal growth. [since] ___________________________________________ 2. We did not go to school. It rained heavily . [because] ___________________________________________ 3. I don’t have much money now, but I want to buy a new computer. If _________________________________________ 4. Light pollution happens. There is a change in animals’ living patterns. If _________________________________________ 5. Acid rain is dangerous. Trees’ leaves are damaged. [because of] ___________________________________________

2018 © Loga - Không Ngừng Sáng Tạo - Bùng Cháy Đam Mê
Loga Team