FACTOID # 16: Only two countries in the world are doubly landlocked: Liechtenstein and Uzbekistan.
 
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Encyclopedia > Molecular hydrogen

Molecular hydrogen, H2, is a molecule formed from two atoms of hydrogen.


  Results from FactBites:
 
hydrogen: Definition and Much More from Answers.com (6175 words)
Hydrogen is prepared commercially by catalytic reaction of steam with hydrocarbons, by the reaction of steam with hot coke (carbon), by the electrolysis of water, and by the reaction of mineral acids on metals.
Hydrogen atoms are combined to form helium atoms in fusion reactions in stars and in hydrogen bombs, which release huge amounts of energy.
Hydrogen (Latin: 'hydrogenium', from Ancient Greek: hydro: "water" and genes: "forming") is a chemical element in the periodic table that has the symbol H and atomic number 1.
Molecular Attraction: Hydrogen Bonding (287 words)
Hydrogen bonding is the strongest of the forces between molecules that have no formal charge.
Since the hydrogens are connected to highly electronegative atoms, their electron density is pulled away from them.
Hydrogen bonds are essentially just the mother of all dipole interactions: in other words, the dipole interaction between a partially positive hydrogen attached to an oxygen atom with that of another oxygen atom is large enough to warrant its own special classification, as a hydrogen bond.
  More results at FactBites »


 

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