Предмет: Химия, автор: mehriniso06

После прокаливания 75,2 г Cu(No3)2, масса остатка стала равной 53,6 г. Определите массовую долю (%) меди в данном остатке.
А)31,84 В)63,68 С)47,76 Д)23,88​

Ответы

Автор ответа: Abubachir555
2

Удачи!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Приложения:

mehriniso06: массовую долю Cu в Cu(No3)2 как нашли?
Abubachir555: ща скажу
Abubachir555: добавил отдельным файлом
Abubachir555: посмотри
mehriniso06: большое спасибо))
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