Which equation best describes the net changes based upon the observation that solid silver nitrate and solid potassium chloride are soluble in water and these solutions react to form insoluble silver chloride and soluble potassium nitrate when mixed? AgNO3 (s) + KCl (s) = AgCl (s) + KNO3 (aq) Ag + (aq) + Cl - (aq) = AgCl (s) AgNO3 (s) + KCl (s) = AgCl (s) + KNO3 (s) AgNO3 (aq) + KCl (aq) = AgCl (s) + KNO3 (aq)

The correct option is: AgNO₃ (aq) + KCl (aq) = AgCl (s) + KNO₃ (aq)

Explanation:

Precipitation reaction is a chemical reaction that involves reaction between two soluble salts to give an insoluble salt. This insoluble salt exists as a solid and settles down.

Therefore, the solid formed in a precipitation reaction is known as the precipitate.

As the solid silver nitrate (AgNO₃) and solid potassium chloride (KCl) are soluble in water, therefore, their aqueous solutions are represented as AgNO₃ (aq) and KCl (aq), respectively.

The precipitation reaction of AgNO₃ (aq) and KCl (aq) gives an insoluble salt, silver chloride (AgCl) and a soluble salt, potassium nitrate (KNO₃).

The insoluble salt, AgCl is called the precipitate and is represented as AgCl (s). Whereas, the soluble salt, KNO₃ is represented as KNO₃ (aq).

Therefore, the chemical equation for this precipitation reaction is:

AgNO₃ (aq) + KCl (aq) → AgCl (s) + KNO₃ (aq)