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lecture 2 - Structure Alkanes and Cycloalkanes Chapter 2...

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1 Alkanes Alkanes and and Cycloalkanes Cycloalkanes Chapter 2 Chapter 2 Structure Structure Hydrocarbon: a compound composed only of carbon and hydrogen Saturated hydrocarbon: a hydrocarbon containing only single bonds Structure Alkane: Alkane: a saturated hydrocarbon whose carbons are arranged in an open chain Aliphatic hydrocarbon: Aliphatic hydrocarbon: another name for an alkane Structure Structure Shape tetrahedral about carbon all bond angles are approximately 109.5° Memorize this Table Memorize this Table Drawing Alkanes Drawing Alkanes Line-angle formulas an abbreviated way to draw structural formulas each vertex and line ending represents a carbon CH 3 CH 2 CH 2 CH 3 CH 3 CH 2 CH 3 CH 3 CH 2 CH 2 CH 2 CH 3 Pentane Butane Propane Structural formula Ball-and- stick model Line-angle formula
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