Предмет: Химия, автор: aboevakamilla34

В реакцию с гидроксидом натрия вступило 4, 9 граммсерной кислоты, при этом образовались сульфат натрия и вода.Найти массу гидроксида натрия вступившего в реакцию
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Автор ответа: kononovfelix

Ответ: 4г NaOH........

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