Interpretation: To show the hydrogen bonding of the water molecule with other water molecules.
Concept Introduction: In the water molecule, the oxygen and hydrogen atoms are held together by strong covalent bonding that is formed by the sharing of an electron pair. However, the electrons in this bond are not shared equally. One atom in a covalent bond often has a greater tendency to attract to the shared pair of electrons than the other atom. This tendency is known as electronegativity.
Answer to Problem 82A
The hydrogen bonding between water molecules is shown below.
Explanation of Solution
Oxygen is more electronegative than hydrogen, so it has a stronger pull on the pair of electrons than the hydrogen atom. This results in the formation of a polar bond due to unequal sharing. The hydrogen atom at one end of the bond carries a partial positive charge
The arrangement of water molecules relative to one another is shown below:
The oxygen end is an electrically negative region that has more electronegativity than the hydrogen atoms, which carry a partial positive charge
The hydrogen bonding existing between water molecules is held by intermolecular forces.
Chapter 15 Solutions
Chemistry 2012 Student Edition (hard Cover) Grade 11
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