Rewrite the following sentences using participle phrases or to infinitive phrases:

1.Did you get the message which concerned the special meeting?

2.I come from a city that is located in the southern part of the country .

3.The rules that allow public access to wilderness areas need to be reconsidered.

4.The children who attend that school receive a good education.

5.The conclusion which is presented in that book states that most of the cars.

6. The fifth man who was interviewed was completely unsuitable.

7.The child would be happier if he had someone that he could play with.

8.I'd more interested if I had a family that I had to cook for

Hãy viết phương trình hóa học của propen dưới tác dụng của các tác nhân và điều kiện phản ứng sau:

a)  trong 

b)    

c) %

d)                  

e) Áp suất và nhiệt độ cao

Viết công thức cấu tạo và gọi tên IUPAC các anken có công thức phân tử sau: C5H10 và C6H12