Silver chloride breaks down to form silver and chlorine in the presence of light. what type of reaction is this? a combination reaction, b double-replacement reaction, c single-replacement reaction, d decomposition reaction?

A decomposition reaction is a type of chemical reaction in which a single compound breaks down into two or more elements or new compounds. These reactions often involve an energy source such as heat, light, or electricity that breaks apart the bonds of compounds. so it is a decomposition reaction because the silver chloride breaks down into silver and chlorine