H2

Definition

Hydrogen gas (H2) is an odorless and colorless diatomic molecule consisting of two hydrogen atoms bonded together. It is highly flammable and commonly used as fuel or for industrial purposes.

Related terms

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.