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Dipole-Dipole Attractions in a Liquid
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Hydrogen bond = the intermolecular attraction between the partially negative O, N, or F of one molecule and a partially positive H connected to O, N, or F of another molecule. Relatively strong
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Water Attractions
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Hydrogen Bonds in Water In H 2 O, the hydrogen bond is between the partial positive H of one H 2 O molecule and the partial negative O of another H 2 O molecule.
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Hydrogen Bonds in HF In HF, the hydrogen bond is between the partial positive H of one HF molecule and the partial negative F of another HF molecule.
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Hydrogen Bonds in Methanol In CH 3 OH, the hydrogen bond is between the partial positive H of one CH 3 OH molecule and the partial negative O of another CH 3 OH molecule.
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Hydrogen Bonds in Ammonia In NH 3, the hydrogen bond is between the partial positive H of one NH 3 molecule and the partial negative N of another NH 3 molecule
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