1 Trong phòng thí nghiệm, người ta điều chế khí hidro= cách cho 13g kẽm tác dụng với dung dịch có chứa 0,3 mol HCL

a, Sau phản ứng chất nào còn dư ,dư bao nhiêu gam?

b, Tính thể tích khí hidro thu đc ở đktc?
Giups mk với mk đang gấp!!!!!!!!!!!!

1 Giari các PT:
a, \(\frac{2}{x+1}-\frac{1}{x-2}=\frac{3x-11}{\left(x-1\right)\left(x-2\right)}\)

b, \(\left(\frac{3}{2x+1}+2\right)\left(5x-2\right)=\frac{5x-2}{2x+1}\)

. III. Read the passage and answer the questions.(1,5ms)Hoa has a pen-pal in the USA. His name is Tim. They regularly correspond. A month ago, Tim wrote to Hoa toinform that he and his family would go to Vietnam on vacation. Yesterday, Hoa went to Noi Bai International Airportto meet them. On their way to the hotel, they enjoyed seeing the beautiful sights along the road. Shannon, who had never seen rice paddies before, was amazed at the farmland. The sugar cane crop also seemedto her. Tim sat back admiring the magnificent views of the surrounding countryside. This was the first time he hasbeen to Vietnam. The car had to stop same times for him to take pictures. The journey from the airport to the hoteltook about 40 minutes. They arrived at the hotel at 6 p.m. They checked in, then went to their room on the secondfloor. They were excited about planning the sightseeing tour of the city following day

1. Do Hoa and Tim often write to each other?

………………………………………………………………………………………………………

2. How did Tim’s family travel to Viet Nam?

………………………………………………………………………………………………………

3. Did they go to Vietnam on business or on vacation?

………………………………………………………………………………………………………

4. Why was Shannon amazed at the farmland?

………………………………………………………………………………………………………

5. Why did the car have to stop same times?

……………………………………………………………………………………………………....

6. What were they going to do the next day?

………………………………………………………………..……………………………….…….

Giups mk vs mk đg cần gấp ạ!!!!!!!!!!!

23 Jim wants to................the place where he once lived in Viet Nam

a. on b. at c. in d. about

14 The little girl...........in blue is one of my nieces

a. dressed b. weared c. put on d. was

15 Soon dark clouds.............and it started to rain heavier

a. became b. appeared c. went d. fell

16 We .............around the lake in a canoe Y.T morning

a. drove b. rode c. cycled d. paddled

17 Would you mind if I............. A photo?

a. take b. took c. taking d. to take

18 This is the first time I .............his mother

a. meet b. am meeting c. met d. have met

19 The doctor..............a red car is living around the corner

a. to drive b. driving c. drove d. driven

20 Peter had a day...........last week

a. remember b. to remember c. remembering d. be remembered

21 A canoe moved up and.............the water

a. in b. down c. on d. a bove

22 Dona is...............and she has a flower shop in Britain

a. a flower seller b. a flower girl c. a flower lady d. a florist

23 Jim wants to................the place where he once lived in Viet Nam

a. on b. at c. in d. about