Write the reaction equations characterizing the properties of hydrochloric acid.

Hydrochloric acid HCl exhibits acidic properties, that is, it can interact with bases and basic oxides.
1. Interaction with sodium hydroxide (base): HCl + NaOH = NaCl + H2O.
2. Interaction with calcium oxide (basic oxide): 2HCl + CaO = CaCl2 + H2O.



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