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Dipoles and Hydrogen Bonding

Dipoles and Hydrogen Bonding. Dipoles. Polar bonds create δ + and δ - regions Positive pole Negative pole. Where are the δ + and δ - poles on water? What creates these poles? . Dipole Interactions. Dipoles can form weak charge attractions between molecules Intermolecular force .

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Dipoles and Hydrogen Bonding

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  1. Dipoles and Hydrogen Bonding

  2. Dipoles • Polar bonds create δ+ and δ- regions • Positive pole • Negative pole Where are the δ+ and δ- poles on water? What creates these poles?

  3. Dipole Interactions • Dipoles can form weak charge attractions between molecules • Intermolecular force

  4. Hydrogen Bonding • Hydrogens in a strongly polar H-N, H-O, or H-F bond have exposed nuclei

  5. Hydrogen Bonding • Exposed hydrogen nuclei can form hydrogen bondswith a lone pair of electrons • Charge attraction

  6. Hydrogen bonding • Hydrogen bonding is a strong intermolecular force

  7. Hydrogen bonding • Hydrogen bonding explains cohesion

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