Here's why:
* Double displacement: In this type of reaction, the positive and negative ions of two reactants switch partners.
* In this case:
* Silver nitrate (AgNO₃) dissociates into Ag⁺ and NO₃⁻ ions.
* Hydrochloric acid (HCl) dissociates into H⁺ and Cl⁻ ions.
* The reaction:
* Ag⁺ ions from silver nitrate react with Cl⁻ ions from hydrochloric acid to form a white precipitate of silver chloride (AgCl).
* The remaining ions, H⁺ and NO₃⁻, combine to form nitric acid (HNO₃), which remains dissolved in solution.
The chemical equation for the reaction is:
AgNO₃(aq) + HCl(aq) → AgCl(s) + HNO₃(aq)
Key observations:
* Formation of a precipitate: The reaction results in the formation of a white, solid precipitate of silver chloride (AgCl), which is insoluble in water.
* Color change: The solution may appear cloudy due to the formation of the precipitate.
This reaction is also a precipitation reaction because it produces an insoluble solid product.
