September 2021 0 7 Report
Помогите с химией пожалуйста Рассчитай, чему равна массовая доля (в %) химического элемента фосфора в оксиде фосфора(V).
Ответ впиши с точностью до одного знака после запятой.
Ответ: w(Р) = %
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