Предмет: Химия, автор: romanovrudenok

Определите химическую природу соли и реакцию среды раствора соли. Заполните таблицу: Формула соли К2СО3 Химическая природа СОЛИ Реакция среды NaCl

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Автор ответа: dyexfnf

Ответ:

Объяснение:

Формула соли NaCl K2CO3

Химическая сильное основание + сильное основание +

природа среды сильная кислота слабая кислота

Реакция среды нейтральная щелочная

NaCl - соль образована сильным основанием и сильной кислотой, поэтому гидролиз не идет. Реакция среды - нейтральная

K2CO3 - соль образованна сильным основанием и слабой кислотой, гидролиз идет по аниону в две ступени. Поскольку в результате гидролиза образовались гидроксид-ионы OH-, то реакция среды - щелочная (pH > 7).

magserg2009: помогите мне пожалуйста с химией

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