VCH4=1.12l

$\Rightarrow$nCH4= $\frac{1,12}{22.4}$=0.05 mol

PTHH :        CH4   +   2O2  $\to$   CO2    +  2H2O

Số mol:        0.05          0.1                                          (mol)

       VO2= 0.1 $\times$ 22.4=2,24 lít

a.

PTHH:  Fe + H2SO4 $\to$ FeSO4 + H2 (bay hơi)

b. Ta có mFe=5,6g

$\Rightarrow$nFe=0.1(mol)

VH2=0.1$\times$22,4=2,24 l

VD: Lịch để bàn, lều trại,....

3 We will not wait for you if you come late tomorrow morning," they said
- They said that they wouldn't wait for me if I came late the following day morning
4 Please don’t talk during the test”Miss Lan said to the students
-Miss Lan said to the students not to talk during the test
5. “Close the door, Nam” asked Mr Ha

-Mr Ha asked Nam to close the door
6 "There is an interesting movie on T.V tonight," Hoa said to me
-Hoa said to me there was an interesting movie on TV that night
7. "I am chatting with my American penal now," Peter said.
-Peter said he was chatting with his American penal then.
8.:My brother doesn't learn hard enough," she said.
-She said her brother didn't learn hard enough
9.. "Trung plays the piano beautifully" they said.
-They said Trung played the piano beautifully.
10. "I must clean the floor now," she said to me.
-She said to me she must clean the floor then.
11. "my mother can speak two languages fluently,Minh said" Minh said.
-Minh said his mother could speak two languages fluently,
12.Lan said “ I will be very busy tomorrow.”
-Lan said she would be very busy the next day.
13. He said, “ I have already read this book”
=> He said he had already read that book
14. Join said to his sister, “I want to buy a gift for our mother”
=> Join told his sister he wanted to buy a gift for their mother
15. The manager said, “come into my office, please.

-The manager told me to come into his office
16. The boys said, “We went away yesterday”.
-The boys said they had gone away the previous day.
17. “I have lived here for ten years” said Tom.
-Tom said he had lived there for ten years
18. The manager said to his assistant, “I’m going to Paris next week.”
-The manager said to his assistant he was going to Paris the next week
19. My friend said, “ I haven’t done my homework.”

-My friend said she hadn't done her homework
20. “I’m leaving here for Hue tomorrow,” she said.
She said she was leaving there for Hue the following day.
21 “I’ll come with you as soon as I am ready,” Tom said to her.
Tom said to her he would come with her as soon as he was ready
22. “I must go now,” the father said to us
.The father said to us he must go then
23He said to us, "Run more quickly."
→ He told to us to run more quickly
24The mother said to her son, “ move here, please.”
→ The mother told to her son to move there
25.She said to me:” Don’t believe everything your friend tells you.”
→ She told me not to believe everything my friend told me.
26. The students said, “We’ll have a test tomorrow. ”
 The students said they would have a test the next day
27, Oanh said to me, “I don’t want to leave this town. ”

-Oanh said to me she didn't want to leave that town.

28. .Lan said “ I will be very busy tomorrow.”
Lan said she would be very busy the next day.
29. He said, “ I have already read this book”
=> He said he had already read that book.
30. Join said to his sister, “I want to buy a gift for our mother”
=> Join told his sister he wanted to but a gift for their mother.
31. The boys said, “We went away yesterday”.

-The boys said tthey had gone away the previous day.

32. “I have lived here for ten years” said Tom

Tome said he had lived there for ten years.
33. The manager said to his assistant, “I’m going to Paris next week.”
The manager said to his assistant he was going to Paris the next week.
34. He said, “I don’t know what happened.”
→ He said he didn’t know what had happened
35. They said, “We’re going to the drugstore.”
→ They said they were going to the drugstore.

TRONG QUÁ TRÌNH LÀM CÓ THỂ MẮC SAI SÓT MONG BẠN THÔNG CẢM!!!!

Thời gian máy bay đã đi là:

     2150:860=2.5(h)=2h30p

Nếu máy bay khởi hành lúc 8h45p thì đến nơi lúc 8h45p+2h30p=11h15p