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Structure of Water
Electronegativity-->
Oxygen (3.5)
vs. hydrogen (2.1), the Bond
is very polar covalent.
Water shape is a bent or
angular molecule with a bond angle of 105o is a highly
polar molecule due to the asymmetrical distribution of
charge.
Molecule Polarity Movie
Hydration of Ionic Solute
Molecules
Positive ions attracted to
the oxygen end
of water
Negative ions attracted to
the hydrogen end of water
Animation
-->Dissolution
of solids
Dissolution of NaCl in
Water Movie
Hydration of Polar Solute
Molecules
Negative end of polar solute
molecules are attracted to water's hydrogen
Positive end of polar solute
molecules are attracted to water's oxygen
"Like Dissolves
Like"
Polar and ionic compounds
dissolve in polar solvents like water
Nonpolar compounds like fats
dissolve in nonpolar solvents like
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