AB → A + B
Where:
* AB represents a single compound.
* A and B represent the products formed from the breakdown of the compound.
Explanation:
Decomposition reactions involve the breakdown of a single reactant into two or more simpler products. This process usually requires an input of energy, such as heat, light, or electricity.
Examples:
* Electrolysis of water: 2H₂O → 2H₂ + O₂
* Thermal decomposition of calcium carbonate: CaCO₃ → CaO + CO₂
* Photodecomposition of silver chloride: 2AgCl → 2Ag + Cl₂
Key Points:
* Decomposition reactions are the opposite of combination reactions.
* The products of a decomposition reaction are always simpler than the reactant.
* These reactions are often used to isolate and purify substances.
Note: The specific products formed in a decomposition reaction depend on the nature of the reactant and the conditions under which the reaction takes place.
