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
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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