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Сульфид натрия в водных растворах проявляет 1) только восстановительные свойства 2) только окислительные свойства

Ffaafafa Ffaafafa    2   17.04.2019 07:40    7

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Fire4ik1 Fire4ik1  17.04.2019 07:40
1) только восстановительные свойства
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