When you mix aqueous solutions of potassium chloride (KCl) and silver nitrate (AgNO3), a double displacement reaction occurs, resulting in the formation of two new products:

* Silver chloride (AgCl): This is a white precipitate (solid) that is insoluble in water.

* Potassium nitrate (KNO3): This is a soluble salt that remains in solution.

The reaction equation is:

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

Here's why this happens:

* Double displacement: The positive and negative ions in the two reactants switch partners. The potassium (K+) ion from KCl combines with the nitrate (NO3-) ion from AgNO3 to form KNO3, and the silver (Ag+) ion from AgNO3 combines with the chloride (Cl-) ion from KCl to form AgCl.

* Solubility: AgCl is a very common example of a precipitate. It forms because it is insoluble in water, meaning it doesn't dissolve readily. KNO3, on the other hand, is soluble in water and remains dissolved as ions.

This reaction is often used in chemistry demonstrations to illustrate precipitation reactions and to teach about solubility rules.