Задача по органической химии.

Какую массу серебра можно получить если через аммиачный раствор оксида серебра пропустить 224 литра метаналя (при нормальных условиях)?

С подробным описанием.

Заранее спасибо.

правила пунктации за 8 класс

Определите напряжение на участке цепи если при переносе заряда 160 кл электрическим полем была совершена работа 720 дж ПОМОГИТЕ ПОЖАЛУСТА!

Read the story about a clever bird. Complete it. Use the correct forms of the verbs:

A clever bird (come) to a house in the country because she wanted to have breakfast. She (run) from one room to another and suddenly she (see)  a big black cat. The cat (jump) and (catch) the bird. "Now i can have a nice breakfast," the cat (say) .

"You can't have breakfast now," said the bird, "you must wash. The farmer and his family   always wash their hands before breakfast. You live in their house and you must do what  they do."

"All right," the cat (say) . "i live with a farmer and in his house, and i must do what they do."

And the cat opened his mouth and (begin) to wash. But when he (be) clean and (want) to begin his breakfast, he did not find the bird. The clever litte bird (be) in the garden in a tall tree. She was happy and  (begin) to sing.

"Now i see," the cat (say)." And now all cats wash after dinner. 

СРОЧНО

ЛЮДИ КТО УМНЫЙ КАК НАЙТИ КОЭФИЦЕНТ ГЕОМЕТРИЧЕСКОЙ ПРОГРЕССИИ ЗНАЯ ТОЛЬКО 5 И 9 ЧЛЕН