Предмет: Химия, автор: kumanev82

соляная кислота+ карбонат алюминия А помогите​

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Автор ответа: manrimargosvai
2

Ответ:

6HCl + Al2(CO3)3 -- 2AlCl3 + 3CO2+ 3H2O

Объяснение:

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Three men came to New York for their holidays. Their names were Tom, Pete and Andy. They came to a hotel and asked for a room. The friends got a room on the forty - fifth floor.

They went sightseeing, visited the picture gallery and looked into some shops. In the evening they came back to the hotel from the cinema.

The servant in the hotel told them: “ I’m sorry, gentlemen, the lift doesn’t work. If you don’t want to go up to your room, you can sleep here, in the hall. I’ll bring you the bed linen. ”

“ No, no”, said the men, “ we shan’t sleep in the hall. We shall go up to our room. ” Then Tom said to his friends:” It’s not easy to go up to the forty - fifth floor. I know what we shall do. I shall tell you a lot of jokes. Andy will sing us songs and Pete will tell us an interesting story”.

The three friends went up to their room. They listened to Tom’s jokes, then Andy sang songs. When they came to the thirty - fifth floor, Tom said to Pete: “ Now we shall listen to your long and interesting story. ”

“ Yes”, answered Pete, “but my story is short and very sad. I have no key with me. It is on the table in the hall. ”

Reading - Comprehension Test №2

I. Choose the phrases which were used in the text

1. three men, four men 3. Theatre, cinema

2. New York, London 4. Funny stories, jokes

II. Choose the sentences which were used in the text

1. A)The friends got a room on the thirty - fifth floor.

B) The friends got a room on the forty - fifth floor.

2 A) They looked into some shops.

B) They looked into some supermarkets.

3. A) We shall go up to our room.

B) We shall sleep in the hall.

4. A) Andy told interesting stories.

B) Andy sang songs.

III. Complete the sentences according to the text

Three men came to…
The friends got a room on the…
Tom will. .
Pete has left the key…
IV. Write down if the sentences are true to the text or false

1. Three men came to a restaurant.

2. Three men visited a picture gallery.

3. They came back from the cinema in the afternoon.

4. Pete will sing songs.

V. Answer the questions on the text

1. Where did three men come to?

2. Why did they go up to their room on foot?

3. Who told jokes?

4. What was Peter’s story?
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