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Chemical Properties of Salts

1. Salts interact with each other if, as a result, an insoluble salt is formed, a

lightly dissociation substance, or gas is released:

CaCl 2 + Na 2CO 3 = CaCO 3 + 2NaCl,

2NaHSO 4 +K 2CO 3 = K 2SO 4 + Na 2SO 4 + CO 2 + H 2O.

2. Salts interact with oxides (acid or amphoteric) forming salt and acid oxide, if

the formed oxide is more volatile than the source:

Na 2CO 3 + SiO 2 = Na 2SiO 3 + CO 2

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