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Срочно помогите !
Найдите объем пропилена (н. у.), полученного при дегидратации 48 г пропанола
Ответы 1
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CH3CH2CH2OH⇒(над стрелкой укажи условия: серная конц. кислота, температ больше 140 град)C=C-C n(C3H8O)=48/60=0.8 мольn(C3H6)=0.8 мольV(C3H6)=0.8*22.4=17.92 л
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Автор:
andyfrv2 - 5 лет назад
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ОТВЕТЬТЕ НА ВОПРОСЫ СРОЧНО ПЛИС THE STORY OF MY TROUBLES
1. Answer the questions:
From my childhood I was an easily taught and obedient boy. My kindness was so noticeable that my friends made fun of me. I was especially fond of animals and had a great number of pets. With these I spent most of my time, and never was so happy as when feeding and playing with them. My character did not change much when I grew up.
I married early, and was happy to find in my wife a character very much like my own. Seeing my love for pets she never lost a chance of getting the most pleasant animals. We had birds, gold-fish, a fine dog, rabbits, a small monkey, and a cat.
This cat was a remarkably large and beautiful animal, quite black and surprisingly clever. In speaking of his cleverness, my wife, who was a superstitious woman, often mentioned the old popular belief, which considered all black cats to be in disguise.
Pluto- this was the cat’s name-was my favourite pet and playmate. I alone fed him, and he followed me everywhere about the house. It was even with difficulty that I could prevent him following me through the streets.
Our friendship lasted for several years, during which my character (I blush to confess it) had changed for the worse. I became day by day more moody and irritable. It often happened that I hurt the feelings of others; I suffered myself as I was rude to my wife. At last I even hit her.
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1. What kind of pets do they have?
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2. Ask questions.
1. Yes/No
2. Who
3. Where
4. or
5. “tag” question
3. Translate:
1. I married early, and was happy to find in my wife a character very much like my own.
2. Our friendship lasted for several years, during which my character (I blush to confess it) had changed for the worse.
3. In speaking of his cleverness, my wife, who was a superstitious woman, often mentioned the old popular belief, which considered all black cats to be in disguise.
4. Name antonyms:
Happy, beautiful, kind, black, begin.-
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