H2molekyyli
H2molekyyli, commonly known as molecular hydrogen or simply hydrogen gas, is a chemical compound composed of two hydrogen atoms covalently bonded together. Its chemical formula is H2. It is the simplest and most abundant chemical substance in the universe, making up about 75% of all baryonic mass. At standard temperature and pressure, H2molekyyli is a colorless, odorless, tasteless, highly flammable gas. It exists as diatomic molecules.
H2molekyyli is formed through various processes, including stellar nucleosynthesis, where it is produced in stars through
Due to its high reactivity, H2molekyyli often combines with other elements. It plays a crucial role in