укажите названия формул: а)CH3-CH(CH3)-CH2OH б) CH3-CH2-CH2OH в) CH3-C(CH3)2-OH г) - №23073200

укажите названия формул: а)CH3-CH(CH3)-CH2OH б) CH3-CH2-CH2OH в) CH3-C(CH3)2-OH г) CH3-CH2-CHOH-CH3
- Предмет:
  Химия
- Автор:
  kenny
- 5 лет назад

Ответы 1

а) 2-метилпропанол-1б) пропанол-1в) 2-метилпропанол-2 или третбутиловый спиртг) бутанол-2
- Автор:
  katelynnbeck
- 5 лет назад
- 0
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Weather
There are five climatic zones on this planet: the equatorial climate zone, the tropical climate zone, the temperate climatic zone, Arctic and Antarctic climate belts.
Our country is in the temperate climatic zone. Average temperature is 12-13 degrees above zero (Celsius) here.
The weather is the thing we always talk about. In Great Britain if people don't know what talk about they talk about the weather. It often changes and brings cold and misty, sunshine and rain, frost and snow.
In summer the sun shines, often there is no wind and there are no clouds in the sky which is blue and beautiful. We can see stars and the moon at night and people like walks, outdoor games and sports in the fresh air. It's usually 18-20 degrees above zero (Celsius).
When autumn comes, the days become shorter and colder. It gets dark earlier and often heavy clouds cover the sky bringing rain with them. Sometimes there is heavy rain, so that an umbrella or a raincoat is necessary if we don't want to get wet through. Then you can hear people say, "What bad weather! When is this rain going to stop?" Many people then catch cold and must go to bed. Then a fire at home is so pleasant. And in autumn the temperate is usually 5-15 above zero degrees (Celsius).
At last frost and snow come. Fields, forests and houses are covered with snow and rivers and lakes with ice. In winter people enjoy skiing, skating and sledging. Children like to play snowballs. The temperate is usually 5-20 below zero degrees (Celsius).
But spring again brings sunshine and warm winds. Sometimes it snows but snow will not remain long, it will melt in the warm sun." Spring will bring bright sunshine, green grass and flowers. The temperate is usually 13-14 above zero degrees (Celsius).
But the weather is very different, and we can know about tomorrow weather from weather forecasts.
We get wet through when we are caught in a rainstorm without a coat. Sometimes we put on a sweater and then find that the weather has become hot. We do not always know what weather to expect.
On TV and radio there are daily weather forecasts. Sometimes, the forecast is not quite right as the weather is not an easy thing to forecast.
All day and night, weathermen are collecting information from ships, planes, weather stations, and space stations. With the help of this information, they can understand what the weather will be like during the next few days. As a result of the weathermen's work we learn about the weather.
Although no two days will have exactly the same weather, some types of weather people can forecast. When a barometer shows high pressure, the weather will be calm. In winter it will be cold and frosty. In summer it usually means misty mornings and hot sunny days. When the barometer shows low pressure, look out for rain and strong winds.
People invented many proverbs and sayings about weather. This is some of them: When the wind is west the weather is always best. When the wind's in the south, the rain's in its mouth.
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A lot of professions are depend of weather. For example: vet, farmer and others.
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