Предмет: Химия, автор: vishnevaya7erka

вычислите массу 20 атомов азота​

Ответы

Автор ответа: chesn0ch0k
0

Ответ:

Mr(N₂)=14*20=280

M=280г/моль

Ar(N)=14

Автор ответа: dovvi03
0

Ответ:

560 гр или 0,56 кг.

Объяснение:

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Предмет: Английский язык, автор: Mertonik
Помогите перевести . A blacksmith's son , Michael faraday was born near London on September 22 , 1791. His family was too poor to keep him in school long . At the age of 13 Michael began working as an errand boy in a , bookshop.
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Faraday was one of those men who made possible the age of electricity . He measured the electric current for the first time . He also made several important observations on the conductivity of different materials. Faraday founded the theory of electric and magnetic fields and made great contribution into the development of electro - magnetic theory of light .
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