CHEM 1AA3 Lecture Notes - Lecture 2: Magnesium, Aromaticity, Ethylene

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Alkanes: hydrocarbons (cnh2n+2, simplest organic compounds, saturated (all single bonds, methane (ch4) / ethane (c2h6) / propane (c3h8, wedged line bond coming forward / out of the plane, dashed line bond going backward / behind of the plane, straight line bond (& attached group) is in the plane, drawing stick structures (zigzags, assume each carbon makes 4 bonds (valence 4, draw out all other atoms, reactions. Structural diversity: skeletal isomers, same molecular formulas different connectivity, different physical properties, conformations of alkanes, all same molecules different conformers, newman projections. Iupac: international union of pure and applied chemistry, choose chain with most branches, alphabetical, di tri don"t count, iso counts, priority, alkanes = halogens therefore use alphabetical, common compounds, acetone (=o) // acetic acid (=o, oh, acetaldehyde (=o, h) // ethyl acetate (=o, och2ch3, formic acid (=o, h, oh) // ether (ch3ch2och2ch3, acetyl group (=o, ch3)