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Chapter 2 Alkanes
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Alkanes Hydrocarbons: molecules that contain H & C only
Others: alkens and alkynes (chapter 3) Saturated hydrocarbon No double bond or triple bond General formula: Cn H2n+2
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Alkanes Drawing alkanes Carbon has to have 4 bonds
1st: Draw carbon back bond 2nd: fill available valence w/ H-bonds
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Alkanes E.g CH4
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Alkanes E.g C4H10
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Alkanes Isomers: structures that differ only in arrangement of carbon chain Same MW Differ m.p, reactivity
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Alkanes Is this a skeletal isomer of C4H10?
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Alkanes E.g Draw all possible isomers for the following molecules
C5H12 C6H14
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Alkanes Cycloalkanes Still a saturated hydrocarbon
General formula: CnH2n E.g C3H6 C5H10
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Alkanes Structural Representations
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