Catalyst Identification: Catalysts are often labeled based on their chemical composition, structure, and active sites. For example, "Pt/C" indicates platinum supported on carbon. Reaction Type: Reactions are classified by the type of transformation they induce, such as oxidation, reduction, hydrogenation, or polymerization. Catalyst Support: The material that supports the active catalyst is labeled, such as "Al2O3" for alumina or "SiO2" for silica. Active Site: The nature of the active site is often included, such as "Fe3+" for ferric ion or "Ni0" for metallic nickel. Reaction Conditions: Conditions like temperature, pressure, solvent, and pH are specified to provide context for catalytic activity.