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составьте структурные формулы веществ: а)3-метилгексен-2
б) 2-метилбутен-1-
Предмет:
Химия -
Автор:
freddieoconnor - 5 лет назад
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Ответы 3
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спасибо большое
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Автор:
gaines - 5 лет назад
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0
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Наверно метабодин хергоцин ш2о и цинтрий
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Автор:
lassiemathis - 5 лет назад
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0
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А) CH3-CH=C(- над ним поставь CH3)-CH2-CH2-CH3Б) CH2=C( над ним CH3)-CH2-CH3
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Автор:
santosne7h - 5 лет назад
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0
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Test in English № 1
1. Complete the sentences with the correct form of the word.
1). Experts predict a … in migration. (grow)
2). They seem to be for that project. They say that it …. the economic and social situation in the town and in the whole region.( improve )
3). A pidgin language developed as means of …. between two or more language groups. (communicate)
4. I think that the usage of this language is very … . (limit)
2. Fill in the blanks with the words from the box.
a) ready meal b) approved of c) fluently
d) a sense of responsibility e) lessen
1. Her …. makes her work hard and do everything in time.
2. Michael has been learning a foreign language for two years but he can’t speak …. yet.
3. Modern technologies can …. the negative impact on the environment.
4. When I decided to enter the technical university, my parents …. my choice.
5. It seems that …. producers think that you have nothing in your kitchen apart from a microwave oven.
3. Fill in the prepositions to complete the expressions.
To deal … all forms of cruelty
Changes are required … this simple reason
To contribute … the solution of the problem.
An addition … a draft bill
To engage … trading
New rules will come … force next week.
4. Complete the sentences with articles (a/an or the) as necessary.
1. Yesterday I bought … pair of … shoes.
2. … United States of America is located in … North America between … Canada and … Mexico. The official language of … USA is … English language.
3. Look at … moon. It is shining brightly.
4. Ludwig van Beethoven was … great composer.
5. … youngest brother is at … school now.-
Предмет:
Английский язык -
Автор:
landenisxw - 5 лет назад
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Ответов:
1 -
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история учебник параграф 7 задание 1 9 класс
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Предмет:
История -
Автор:
reaganjasx - 5 лет назад
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Ответов:
1 -
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сколько процентов от числа 1 целая 1/3 состовляет число 0,3
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Предмет:
Математика -
Автор:
whiskey - 5 лет назад
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Ответов:
1 -
Смотреть
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Ширина прямоугольника равна 42 см, а длина на 29см больше. Найдите периметр прямоугольника и выразите его в дециметрах
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Предмет:
Математика -
Автор:
alvaroi8af - 5 лет назад
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Ответов:
1 -
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