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  2. Topicity - Wikipedia

    en.wikipedia.org/wiki/Topicity

    Enantiotopic groups are identical and indistinguishable except in chiral environments. For instance, the CH 2 hydrogens in ethanol (CH 3 CH 2 OH) are normally enantiotopic, but can be made different (diastereotopic) if combined with a chiral center, for instance by conversion to an ester of a chiral carboxylic acid such as lactic acid, or if coordinated to a chiral metal center, or if ...

  3. VSEPR theory - Wikipedia

    en.wikipedia.org/wiki/VSEPR_theory

    The steric number of a central atom in a molecule is the number of atoms bonded to that central atom, called its coordination number, plus the number of lone pairs of valence electrons on the central atom. [11] In the molecule SF 4, for example, the central sulfur atom has four ligands; the coordination number of sulfur is four. In addition to ...

  4. Chemical bonding of water - Wikipedia

    en.wikipedia.org/wiki/Chemical_bonding_of_water

    2 O) is a simple triatomic bent molecule with C 2v molecular symmetry and bond angle of 104.5° between the central oxygen atom and the hydrogen atoms. Despite being one of the simplest triatomic molecules , its chemical bonding scheme is nonetheless complex as many of its bonding properties such as bond angle , ionization energy , and ...

  5. Water cluster - Wikipedia

    en.wikipedia.org/wiki/Water_cluster

    Detailed water models predict the occurrence of water clusters, as configurations of water molecules whose total energy is a local minimum. [6] [7] [8] Of particular interest are the cyclic clusters (H 2 O) n; these have been predicted to exist for n = 3 to 60. [9] [10] [11] At low temperatures, nearly 50% of water molecules are included in ...

  6. Properties of water - Wikipedia

    en.wikipedia.org/wiki/Properties_of_water

    Another name is dihydrogen monoxide, which is a rarely used name of water, and mostly used in the dihydrogen monoxide parody. Other systematic names for water include hydroxic acid, hydroxylic acid, and hydrogen hydroxide, using acid and base names. [j] None of these exotic names are used widely. The polarized form of the water molecule, H + OH −

  7. Deuterium - Wikipedia

    en.wikipedia.org/wiki/Deuterium

    Urey created the names protium, deuterium, and tritium in an article published in 1934. The name is based in part on advice from Gilbert N. Lewis who had proposed the name "deutium". The name comes from Greek deuteros 'second', and the nucleus was to be called a "deuteron" or "deuton". Isotopes and new elements were traditionally given the name ...

  8. College Football Playoff: Georgia QB Carson Beck undergoes ...

    www.aol.com/sports/college-football-playoff...

    Beck missed the second half of the game, and backup quarterback Gunner Stockton took over and led the Bulldogs to the win in overtime. That secured them a spot in the College Football Playoff and ...

  9. Amphoterism - Wikipedia

    en.wikipedia.org/wiki/Amphoterism

    The water molecule is amphoteric in aqueous solution. It can either gain a proton to form a hydronium ion H 3 O +, or else lose a proton to form a hydroxide ion OH −. [5] Another possibility is the molecular autoionization reaction between two water molecules, in which one water molecule acts as an acid and another as a base.

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