Предмет: Химия, автор: vitalijhrin4

Обчисліть масову частку елементу металу у кальцій оксиді

Ответы

Автор ответа: iliyaskina

9

Ответ:

W=n*Ar\Mr

Mr(CaO)=40+16=56

W(Ca)=1*40\56=0,71*100=71%

W(O)=1*16\56=0,29*100=29%

Объяснение:

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