Emlthuntonnee Emlthuntonnee

23-12-2015
Chemistry

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38 The boiling points, at standard pressure, of four compounds are given in the table below.CompoundBoiling Point (oC)H2O100.0H2S-59.6H2Se-41.3H2Te-2.0
What type of attraction can be used to explain the unusually high boiling point of H2O?
(1) ionic bonding
(2) hydrogen bonding
(3) polar covalent bonding
(4) nonpolar covalent bonding

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tescoman1 tescoman1

25-12-2015

Hydrogen bonding! Each hydrogen atom with a high charge density forms bonds with lone pairs on oxygen atoms. These bonds require a lot of energy to break giving water a relatively high boiling point.

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