A decomposition (desynthesis) reaction involves:

A decomposition reaction, also known as a desynthesis reaction, specifically involves a single reactant breaking down into two or more products. This process can be represented by the general equation AB → A + B, where a compound (AB) is broken down into its constituent elements or simpler compounds (A and B). This type of reaction is fundamental in both organic and inorganic chemistry and plays a significant role in processes such as digestion, combustion, and various industrial applications.

For instance, when water (H2O) decomposes through electrolysis, it breaks down into hydrogen (H2) and oxygen (O2) gases. Understanding this type of reaction is crucial in various scientific disciplines, as it lays the groundwork for more complex reactions and helps explain the behavior of compounds under certain conditions.