Cho 23,00 gam C2H5OH tác dụng với 24,00 gam CH3COOH (to, xúc tác H2SO4 đặc) với hiệu suất phản ứng 60%. Khối lượng este thu được là

A. 22,00 gam.

B. 23,76 gam.

C. 26,40 gam.

D. 21,12 gam.

1,Peter is too young to see the borrow film.

->Peter is not....old enough to see the borrow film..........................

2,Remember to turn off the light before going out.

->Don't........forget to turn off the light before going out......................

3,I intend to come over to pick you up.

->I am......going to come over to pick you up..........................

4,The theater is near Hoa's house.

->The theater isn't.....far from Hoa's house........................

5,Alexander Graham Bell invented the phone.

->Alexander Graham Bell was.......an inventor of the telephone..................

6,I'll telephone you tomorrow evening.

->I'll make.......you a phone call tomorrow evening...................

Viết câu hỏi sử dụng what,where,why,who hoặc how old
1.......What color is it......................................................?
It's blue.
2....What color are they.........................................................?
They're red and blue.
3.......Who is he........................................................?
He's my best friend.
4......Where are they.........................................................?
They're on your desk.
5.......Where is she........................................................?
She's in her car.
6.........Where is your dod....................................................?
My dod's not here.
7....What is it..........................................................?
It's pizza.
8.......How old is she........................................................? 
She's twelve.

1.We/ tranvel/ Nha Trang/ next week
=> We'll travel to Nha Trang next week

2.Nga and Lan/ visit/ their grandparents
=> Nga and Lan'll visit their grandparents 

3.They/ go/ the movie/ tonight
=> They 'll go to see the movie tonight

4.Hoa/ have/ lots of fiends/ soon
=> Hoa'll have lots of friends soon

5.I/ come/ after luch
=> I 'll come after lunch

6.He/ see/ you/ tomorow afternoon
=> he'll see you tomorrow afternoon

7. My father/ be free/ at 7:30 this evening
=> My father'll be free at 7.30 this evening

8. The student/ go camping/ next Sunday
=> The student'll go camping next Sunday

Cho e đăng kí ạ :
email : meoconkiquac@gmail.com
Họ tên : Nguyễn Hà Phương

Đúng là đồ tự hỏi tự trả lời lại còn nói người khác , tự xem xét lại mình đi rồi nói người khác