trộn 10ml dd H2SO4 vs 10ml dd HCl rồi chia dd thu đc thành 2 phần bằng nhau

phần 1 cho tác dụng vs dd BaCl2 dư đc 6,99g kết tủa

phần 2 cho tác dụng vs Na2CO3 dư tạo ra 896ml khí ở đktc

xác định nồng độ mol của mỗi axit trc khi trộn

Read the text,and fill in the blanks withthe suitable words

and can located however

more busier deescribed according makes

City is often (1) as a large and a highly populated area. (2) , city life is living in a large populated, technologically advanced area. (3) to World Health Organization, 54% of the world’s population lived in urban areas by 2014. A city is technologically (4) advanced and complex than the countryside. Therefore, there are many advantages in living in a city. Technology (5) our lives easy in a City.Cities have many facilities like high-quality hospitals, educational institutes, banks, shops (6) other business institutes. This makes our life easy as we (7) access the facilities provided by these institutes and organizations without delay. Moreover, many employment opportunities are available in the City as many major business institutes, factories are (8) here. City life also gives us access to developed infrastructure facilities, like water, electricity, telecommunication and transportation facilities.(9) , we can also notice a difference in the behavior of the people living in thecity. City dwellers tend to be (10) , ambitious and distant compared to the village folk.

I. Choose the best one (A, B, C or D) to complete the sentence.

1. Villagers are more kind, friendly and warm-hearted than city .

A. dwellers B. foreigners C. beginners D. movers

2. You can see the of the suburbs in Ho Chi Minh City with many apartment

buildings, supermarkets, shopping centres, and schools.

A. urban area B. convenience C. urban sprawl D. living condition

3. Dong Khoi Street is the main shopping street in the of downtown in Ho Chi

Minh City.

A. mind B. heart C. head D. spot

4. It is considered that life in a city is wonderful and .

A. funny B. boring C. enjoyable D. helpful

5. No city in America has monuments and museums into one area as Washington,

DC.

A. as much B. such many C. as many D. a few

6. My passport last month, so I will have to get a new one.

A. elapsed B. expired C. ended D. terminated

7. The department is also deeply in various improvement schemes.

A. connected B. entailed C. involved D. implied

8. His answer was so confused that I could hardly make any of it at all.

A. interpretation B. meaning C. intelligibility D. sense

9. The main attraction of the job was that it offered the to do the research.

A. possibility B. proposal C. opportunity D. prospect

10. I wish you’d tell me what I do in this difficult situation.

A. shall B. would C. should D. ought

11. A competitor may submit any number of entries , each one is accompanied by

a packet top.

A. supposing B. notwithstanding C. assuredly D. provided

12. They always kept on good with their next-door neighbours for the children’s sake.

A. friendship B. relations C. will D. terms

13. He earns his living by old paintings.

A. reviving B. restoring C. reforming D. replenishing

14. Hotel rooms must be by noon, but luggage may be left with the porter.

A. vacated B. evacuated C. abandoned D. left

15. The majority of nurses are women, but in the higher ranks of the medical profession women

are in a .

A. rarity B. minority C. scarcity D. minimum

Điền từ thích hợp vào chỗ trống : round , turned down , put down , grew up , look forward to , turned off , lived up to , thought over , get on with.

1 Miss Diep didn't know the correct spelling so she had to ......... it ............ in the dictionary

2 She's ............it .......... and has made up my mind ;she's going to take the job in New York

3 Can you ..............your name ,telephone number and email address ............. in the book , please ?

4 My hotel was amazing and it .......... all my expectations

5 Mark was born in the East End , but he ...... in the West End

6 The guide .......... us .......... the historic parts of the city

7 He doesn't know why she ........... his invitation to the party

8 Vinh is very friendly .He ......... most of my friends

9 West are all .......... seeing our grandparents again

10 Miss Hang ........ the music ........... and went to bed because it was quite late