Ответы » Английский язык (18796 вопросов)

Вопрос № 911969 - Английский язык

Расположите пропущенные предложения в таком порядке, чтобы получился связный текст.
1_______. Most, however, become laboratory findings and for the present, at least, have no practical application. 2_______. The million or so organic compounds now known and characterized were synthesized in the laboratories of the world in the past 150 years.
3_______.
Many other organic compounds are prepared from these materials after they are separated into their constituents. 4_______.
Варианты ответов
  • Complex mixtures of hydrocarbon compounds containing only carbon and hydrogen occur in very large quantities in nature as petroleum and natural gas
  • A very few number may provide an important explanation of the mechanism of fundamental chemical reaction in the human body
  • The preparation of new and different compounds through chemical reaction is called organic synthesis
  • From the simplest hydrocarbon, methane, come such products as plastic vessels, acrylic fibers, vinyl paints, etc
Тип вопроса: Вопрос на последовательность
Правильный ответ
Ответ на этот вопрос уже получили: 1 раз(а)
Помогли ответы? Ставь лайк 👍
Расскажи другу:
Вопрос задал(а): Анонимный пользователь, 13 Ноябрь 2020 в 16:10
На вопрос ответил(а): Анастасия Степанова, 13 Ноябрь 2020 в 16:10

Похожие вопросы

Вопрос № 911968

Расположите пропущенные предложения в таком порядке, чтобы получился связный текст.
1_______. Although there are 89 other naturally occurring elements, the number of known carbon compounds is many times greater than that of the known compounds which contain no carbon. 2_______. The name “organic” comes from the past when chemical compounds produced from ones-living matter were called “organic” and all other compounds were called inorganic.
3_______. Every month several hundred new organic compounds are prepared. 4_______.
There are nearly two million different carbon compounds to have been studied and described in the chemical literature with thousands of new ones, which are reported every year
The very large and important branch of chemistry, which studies and investigates carbon compounds, is called organic chemistry
The importance of carbon chemistry for man is great
A few of these new compounds become important as medicines, plastics, textiles, solvents, food additives, cosmetics or some other products

Вопрос № 911967

Расположите пропущенные предложения в таком порядке, чтобы получился связный текст.
1_______. If all the carbon and carbon compounds were suddenly removed from the earth it would look like the surface of the Moon. 2_______. In an ordinary pencil, for example, the inside of the pencil made from graphite, which is an elementary form of carbon, the wood and the paint on the surface of the pencil are all carbon or carbon compounds. The paper of a book, the cover are also made of carbon compounds. All of the clothes one wears including shoes cannot exist without carbon. 3_______. Fuels, foods and many drugs are mostly made of carbon compounds. 4_______.
It is well known that the element carbon plays an important role in the life on Earth
Many of the little everyday things would be quite impossible without the element carbon
If carbon compounds were removed from the human body, there would be nothing left except water and a small residue of minerals and the same is true for all forms of living matter
In addition, many carbon compounds such as plastics to be connected, with the life processes play a vital role in one’s life

Другие вопросы по предмету Английский язык

Вопрос № 911970

Расположите пропущенные предложения в таком порядке, чтобы получился связный текст.
1_______. It is formed when acetyl chloride or acetic anhydride acts on ethyl alcohol. 2_______.
Ethyl acetate is a colourless, mobile liquid, with a pleasant fruity odour. 3_______. It is soluble in water and is miscible with alcohol, ether and chloroform, forming neutral solutions. 4_______.
Ethyl acetate is a typical example of an ester of an organic acid
Ethyl acetate is prepared by the interaction of alcohol and glacial acid in the presence of concentrated sulphuric acid
Its weight per ml is 0.9 and it boils at 77°
When ethyl acetate is boiled with water under reflux condensation, it slowly undergoes hydrolysis

Вопрос № 911971

Расположите пропущенные предложения в таком порядке, чтобы получился связный текст.
1_______. It can be called, molecular biology. Biochemistry is known to be the study of the structures and reactions of the thousands of compounds involved, in life process. 2_______.
Living things are supposed to represent the most efficient, sophisticated, compact chemical “factories” ever known. 3_______? When the body is afflicted by disease or by a wound how does the body protect itself and repair the damage? 4_______.
The chemistry of life, or “biochemistry” as chemists call it, is an area in which the classical fields of chemistry and biology meet
It is considered to be the most complex area of chemistry
How, for example, do cells of the body know when to divide and multiply into new cells having the same characteristics as the original cells
We know these processes to involve thousands of different chemical compounds

Вопрос № 911973

Прочитайте текст.
The following ailments are prone to occur in cigarette smokers:
1. Cancer of the lung. Heavy cigarette smokers are 30 times as liable to develop cancer of the lung as non-smokers are. There is overwhelming evidence that lung cancer is caused by cigarette smoking.
2. Bronchitis and emphysema. Prolonged cigarette smoking commonly leads to progressive cough and breathlessness, ultimately leading to respiratory incapacity. Gastric and duodenal ulcers take longer to heal in cigarette smokers.
Закончите предложение:
Gastric and duodenal ulcers take longer to heal in …
alcoholic
cigar smokers
non-smokers
cigarette smokers

Вопрос № 911975

Прочитайте текст.
Tobacco claims 390,000 lives a year, 90,000 more than earlier estimates. Two-thirds of those deaths result from cardiovascular disease, lung cancer and chronic respiratory ailments like emphysema. The average male smoker is 22 times as likely to die from cancer is a nonsmoker. On the bright side, the USA has made substantial strides in curtailing cigarette use. Only 29 % of adults now light up, down from 40 % in 1965.
Закончите предложение:
Two-thirds of deaths result from cardiovascular disease, lung cancer and chronic respiratory ailments like …
bronchitis
cold
pneumonia
emphysema
А еще можно заказать:
Лабораторные от 200 руб Контрольные от 200 руб Курсовые от 500 руб Дипломные от 3000 руб Отчет по практике от 500 руб