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Video id: #100 (enlarge)
Post date: 5/20/2009
Posted by: pmpaulone
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Chemistry

  • Definition: Chemistry is a branch of natural science that deals principally with the properties of molecules, the chemical reactions that occur between them, and the natural laws that describe molecular interactions. Chemistry is a central science, having strong interactions with biology, medicine, earth and environmental sciences, physics, and mathematics.

    Source: University of Washington

  • Example: Chemistry is a branch of natural science that deals principally with the properties of molecules, the chemical reactions that occur between them, and the natural laws that describe molecular interactions. Chemistry is a central science, having strong interactions with biology, medicine, earth and environmental sciences, physics, and mathematics.

  • 3:24am 11/3/2015

    User: prakashh1997

    Post count: 78

  • 3:44am 10/15/2015

    User: prakashh1997

    Post count: 78

  • 8:46am 4/10/2013

    User: adekoeyer

    Post count: 1

    I love this resource! One problem I have is that your placing a term in only one category sometimes makes it hard to find. Would you consider adding, in addition to having categories, a browsing option via one long alphabetical listing of all the terms? Thanks.

  • 6:57am 12/5/2012

    User: cerignall

    Post count: 1

    A sign for resonance, the linking of three carbon atoms by alternating double bonds. H sign with right hand facing left palm in, move to facing right palm out, so the hand is the carbon atom and the fingers are the double bonds