Предмет: Химия, автор: sashadahno2005

Обчислити масові частки елементів у AlBr3​

Ответы

Автор ответа: segimaidol
2

Объяснение:

Дано:

АlBr3

W(Al) = ? W(BR)= ?

Мr(АlBr3) = 27+80+3=267

W(Al) = 27/267×100=10.1%

W(Br) = 240/267×100=89%

Ответ: W(Al)=10,1%, W(Br)=89% .

вроде бы так

segimaidol: ой рядом с W(Br)= ? двойка лишняя
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