Химия Архивный вопрос

Напишите уравнение реакции между следующими веществами, данный в виде раствор : водородным соединением элемента № 17 и гидроксидом элемента №20

4 комментария:
эти элементы из таблицы Менделеева?
#17 и #20?
да
верно

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Гость

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2 комментария:
бедет -25°
24○