Double Displacement Reactions Explained in 60 Seconds | Neutralization & Precipitation Examples

Added: 2026-05-05

[00:00:00]Double displacement reactions involve a swap between two compounds, AB and CD, resulting in two new compounds, AD and CB. Let's explore how this ion exchange works. In double displacement, like charges attract unlike charges.

[00:00:15]Therefore, a direct swap between positive sodium and negative chloride ions is blocked. Instead, the positive ion swap positions with other positive ions, and the negative ion swap with other negative ions, maintaining ionic attraction. A neutralization reaction is a type of double displacement where an acid and a base react. For example, $ ext{HCl}$ and $ ext{NaOH}$ exchange ions to form $ ext{H}_2 ext{O}$ water and chloride}$ dollar, a salt solution. Another double displacement type is a precipitation reaction. When two aqueous solutions, like chloride}_2$ and $ ext{Na}_2 ext{SO}_4$, are mixed, they form an insoluble solid called a precipitate. In this case, $ ext{BaSO}_4$ precipitates out, while chloride}$ remains in solution.