The reaction between potassium chloride (KCl) and sodium nitrate (NaNO₃) is a double displacement reaction, but it does not result in a chemical change. This is because the products formed, potassium nitrate (KNO₃) and sodium chloride (NaCl), are both soluble ionic compounds that remain dissolved in solution.

Here's how the equation looks:

KCl (aq) + NaNO₃ (aq) → KNO₃ (aq) + NaCl (aq)

Explanation:

* (aq) denotes that the substances are dissolved in water (aqueous solution).

* Double Displacement: The positive and negative ions of the reactants switch partners.

* No Precipitation: None of the products are insoluble, so no solid precipitates form.

In essence, mixing potassium chloride and sodium nitrate in solution results in a mixture of all four ions in solution, with no visible reaction or new compound formation.