Привет! Cоляная кислота - это есть кислота=) Так же, как и остальные разбавленные кислоты, кроме азотной и серной кислот (нет, они тоже реагируют, но в них присутствуют продукты восстановления серы и азота), она реагирует:
1) C Me, стоящими до H, в ряду напряжений Me:
Zn + 2HCl = ZnCl2 + H2;
2) С основными гидроксидами:
2HCl + Mg(OH)2 = MgCl2 + 2H2O;
3) С основными оксидами:
2HCl + CaO = CaCl2 + H2O;
4) С амфотерными гидроксидами:
3HCl + Fe(OH)3 = FeCl3 + 3H2O;
5) С амфотерными оксидами:
2HCl + ZnO = ZnCl2 + H2O;
6) С солями более слабых кислот:
Na2SiO3 + 2HCl = 2NaCl + H2SiO3;
7) С кислотными оксидами (тут расписывать не буду, запутаешься, просто запомни=)). Там в зависимости от реагентов и условий, могут быть разные продукты окисления хлора и продукты восстановления реагентов.
8) В водных растворах диссоциирует:
HCl ---> H(+) + Cl(-);
9) Изменяет окраску индикаторов:
Лакмус - розовый, больше красный;
Метиловый оранжевый - красный;
Фенолфтален - бесцветный;
Вроде всё!:D
The end?
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