Chapter 3 - Chapter 3 Introduction to Organic Molecules and...

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Chapter 3 Introduction to Organic Molecules and Functional Groups Organic Chemistry Janice Gorzynski Smith 3 rd Edition
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Key Concepts • Functional groups and their chemical reactivity • Review Intermolecular forces (dipersion forces, dipole-dipole forces, hydrogen bonds) and their influence on physical properties of compounds (mp, bp, solubility) • Introduction to biomolecules
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Functional Groups • The structural features that allow us to classify compounds together are called functional groups. • A functional group is a group of atoms within a larger molecule that has a characteristic structure and chemical behavior. • The chemical reactivity and the physical properties of an organic molecule are primarily determined by its functional group(s) Memorize all the functional groups
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Hydrocarbons vs. Functionalized Hydrocarbons Ethane has only C-C and C-H bonds. It contains no polar bonds, lone pairs, or bonds. Therefore, ethane has no reactive sites (functional groups). Consequently, ethane and molecules like it (alkanes) are very unreactive .
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Practice Name all the functional groups present in these molecules
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• Ion-Ion Interactions: much stronger than the intermolecular forces present between covalent molecules. • Ionic compounds have
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Chapter 3 - Chapter 3 Introduction to Organic Molecules and...

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