Diatomic Molecule: A diatomic molecule consists of two atoms chemically bonded together. Examples include O2 (oxygen), N2 (nitrogen), and Cl2 (chlorine).
Combustion Reaction:Combustion reactions involve the rapid combination of oxygen with another substance, often producing heat and light.
Hydrogenation Reaction: Hydrogenation reactions involve adding hydrogen gas (H2) across unsaturated compounds like alkenes or alkynes.