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Chemistry - The Central Science Chapter 11

Chemistry - The Central Science Chapter 11 - Chapter 11...

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Chapter 11 Liquids and Solids – Intermolecular Forces A. Intermolecular Forces B. Phase Changes and Phase Diagrams C. Structures of Solids HW #10 11.14, 11.16, 11.18, 11.26, 11.34, 11.45, 11.48, 11.77, 11.103 Covered On Final Exam
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Chapter 11 Liquids and Solids – Intermolecular Forces A. Intermolecular Forces Intermolecular forces describe the attractive interactions between molecules . The strength of the intermolecular forces governs whether a substance is a gas, liquid or solid. strong forces ionic, covalent intermediate hydrogen bonding, dipole-dipole weak London dispersion (also called van der Waals) 1. Dipole-dipole forces Dipole-dipole interactions exist for molecules that have molecular dipoles. SO 2 example
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2. Hydrogen bonding Hydrogen bonding is a type of dipole-dipole that involves a polar bond to hydrogen. Hydrogen bonds are usually stronger than other dipole-dipole. H–F example The unique properties of water arise from hydrogen bonding.
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