Reaction: Silver nitrate (AgNO₃) solution reacts with sodium chloride (NaCl) solution.
Equation:
AgNO₃ (aq) + NaCl (aq) → AgCl (s) + NaNO₃ (aq)
Explanation:
* Reactants:
* Silver nitrate (AgNO₃) is a soluble ionic compound, meaning it dissolves in water and forms ions (Ag⁺ and NO₃⁻).
* Sodium chloride (NaCl) is also a soluble ionic compound, forming ions (Na⁺ and Cl⁻) in solution.
* Reaction: When the solutions of silver nitrate and sodium chloride are mixed, the silver ions (Ag⁺) from silver nitrate react with chloride ions (Cl⁻) from sodium chloride. This reaction forms an insoluble solid called silver chloride (AgCl).
* Product: The insoluble silver chloride precipitates out of the solution as a white solid. The remaining ions (Na⁺ and NO₃⁻) remain in solution as soluble sodium nitrate (NaNO₃).
Key Characteristics of a Precipitation Reaction:
* Two soluble ionic compounds react.
* An insoluble ionic compound (precipitate) is formed.
* The precipitate separates from the solution as a solid.
Observation: A white solid (AgCl) forms and settles at the bottom of the reaction vessel.
