System to describe the chemical formulas for WEB.

Hydrogen

Find chemicals by name or formulas.
This reference contains the names of substances and descriptions of the chemical formulas (including the structural formula and the skeletal formula).
Type the part of name or the formula of substance for search:
Languages: | | | Apply to found

Hydrogen

Molecular formula: H2 CAS# 1333-74-0
Categories: Diatomic molecule , simple substances , Food additive
PubChem CID: 783 | ChemSpider ID: 762 | CHEBI:18276, CHEBI:29299
Names
English:
Dihydrogen
E949
EINECS:215-605-7
Hydrogen [Wiki]
Hydrogen gas
Molecular hydrogen
diprotium
hydrogen molecule

Variants of the formula:

H2
H-H
Elemental composition
Can't show the diagram.
Symbol Element Atomic weight Number of atoms Mass percent

Reactions in which Hydrogen is involved

  • 2H2 + O2 = 2H2O
  • 2{M} + 2H2O = 2{M}OH + H2"|^" , where M = Li Na K Rb
  • H2 + {Hal}2 -> 2H{Hal} , where Hal = F Cl Br I
  • H2 + F2 = 2HF
  • Zn + H2SO4 -> ZnSO4 + H2"|^"