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INTERMOLECULAR FORCES (bonds) Occur between molecules Weaker than intramolecular forces.

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Presentation on theme: "INTERMOLECULAR FORCES (bonds) Occur between molecules Weaker than intramolecular forces."— Presentation transcript:

1 INTERMOLECULAR FORCES (bonds) Occur between molecules Weaker than intramolecular forces

2 Hydrogen Bonding One molecule is polar and has a hydrogen in a H-F, H-O, or H-N bond Other molecule has unshared pairs of electrons, usually on F, O, or N ◦ F, N, and O are highly electronegative!!!! Hydrogen forms a weak bond with the unshared pair on the other molecule

3 Water is a great example of hydrogen bonding

4 Van Der Waals Bonds Intermolecular attractions resulting from constant motion of electrons Creation of instantaneous dipoles

5 Van Der Waal Bonds Very Weak!!! Can occur between noble gas atoms and nonpolar molecules

6

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