-
Составьте уравнение реакции дегидрирования этана. Какой объём этилена может быть получен , если для дегидрирования было взято 15 г этана
-
Предмет:
Химия -
Автор:
deareynwj9 - 6 лет назад
-
Ответы 1
-
C2H6 = C2H4 + H2V(C2H4) = (22.4*15)/30 = 11.2 лVm=22.4 л/мольМ(С2Н6) = 30 г/моль
-
Автор:
bacongnjr - 6 лет назад
-
0
-
-
Добавить свой ответ
Еще вопросы
-
Перевести.
Just when
the lions reached Westminster Bridge, Big Ben struck twelve.
“I’ve got a
great idea,” said Susan. “Let’s go up into the tower and change the clock ahead
an hour.”
“What fun!”
Edward added.
The four
lions jumped over the fence and climbed the stairs to the top of the tall tower
where Big Ben was. Susan stuck her paw out and changed the clock so that it was
one o’clock in the morning, instead of midnight. They quickly climbed back down
and ran over the bridge again and Big Ben struck one.
2.The
groundskeeper turned on the light in his shed. The lions laughed. The keeper
came outside and looked at the clock. “I just heard it stroke midnight. What’s
wrong with Big Ben tonight?”
The groundskeeper looked at his watch and went upstairs. The lions watched as he put the hands of Big Ben to just after midnight.
3.Susan,
Albert, Edward and Beatrice ran down the bank of the Thames River, laughing all
the way. Then, they ran further along the river bank and didn’t stop before the
Tower of London.
“These
buildings have been here a long time, haven’t they?” Susan said, looking at the
tall towers.
“I think
one of them has been here a thousand years,” said Albert.
4.”I’ve
heard that there are ravens which live in the Tower. I hate birds. I’m tired of
the pigeons which land on me in Trafalgar Square. Let’s go and wake them up,”
Beatrice said.
“OK, Edward agreed. And can we eat the ravens? I’m rather hungry. Let’s get them.” Edward agreed. The four lions jumped over the gate and ran across the grass towards the White Tower, the main place where the ravens slept. “Mind the guards. They’re called Beefeaters, “ Beatrice said.
“We’ll have a lot of trouble if they find us here.””Why on Earth are they called Beefeaters?” Edward asked. “Can we eat them? Do they taste like beef?”
5.“Would
you please stop talking about food, Edward,” Beatrice said.
Soon they
saw the sleeping ravens near the White Tower.
“They are strange birds, aren’t they?” Susan asked.
“They look
delicious enough to eat,” Edward said.
6.The
ravens woke up, saw the lions and ran in all directions. None of them could fly
because their wings had been clipped. They ran very fast. Beatrice ran after
one of the ravens all around the White Tower. Edward ran after two ravens down
to Traitor’s Gate at the River Thames. Albert ran around after a few ravens on
the grass. But Susan just ran and jumped on the grass paying no attention to
the black ravens.
7.Soon the
lions got tired of running after the ravens and they gathered on the grass.
“I’ve had a
good time. Anything else to do in the Tower of London?” Albert asked.-
Предмет:
Английский язык -
Автор:
waylonserrano - 6 лет назад
-
Ответов:
6 -
Смотреть
-
-
вырази диаметры планет в километрах.Образец.Земля1280000000см=12800км=13000км. МЕРКУРИЙ 487800000см= ВЕНЕРА 1210200000см= МАРС 6760000000мм= УРАН51118000000мм= 4 нласс помогите....
-
Предмет:
Математика -
Автор:
noeliaeqrf - 6 лет назад
-
Ответов:
0 -
Смотреть
-
-
Коля Дима и Саша собрали вместе 30 грибов. Дима нашёл в 2 раза больше грибов чем Коля. А Коля в 3 раза меньше чем Саша. Сколько грибов нашёл каждый из них? Сделай чертёж к задаче и реши её.
-
Предмет:
Математика -
Автор:
short shortsvirm - 6 лет назад
-
Ответов:
1 -
Смотреть
-
-
составь предложение по схеме Прилагательное подлежащие "и"подлежащие сказуемое прилагательное
-
Предмет:
Русский язык -
Автор:
jacksongndr - 6 лет назад
-
Ответов:
1 -
Смотреть
-
Топ пользователей
-
Fedoseewa27
35934 -
Askold
2792 -
Pikachu
2228 -
hobbesbowers
2116 -
kaylynnbarron676
1818 -
女fei
1240 -
yulia-kaplina
1158 -
Poinntt
946 -
Bars
930 -
Queenmagic18
770
How much to ban the user?
1 hour
1 day
100 years