Предмет: Химия, автор: Goyom

массовая доля фтора в составе плавикого шпата (в процентах)

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Автор ответа: Аризоанна

массовая доля фтора в составе равна 11,33%

Автор ответа: loljigurda

А масса плавикого шпата?

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