CHEM 151 Exam 5 with complete solutions

CHEM 151 Exam 5 with complete |! |! |! |! |! |!




solutions


1.What are the three states of
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matter?: solids liquids
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gasses


2.What is the main diffrence between the states of matter?: the
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distance of the particles (close in liquids and solids, far in
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gasses)


3.What are intramolecular forces?: forces that hold the atoms
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together


4.What are intermolecular forces?: forces between two or
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more molecules or atoms
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1 |! / |!
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, 5.How are intramolecular bonds drawn?: as solid lines
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6.How are intermolecular bonds drawn?: as dashed lines
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7.Intermolecular forces are |! |! |! than intramolecular forces:
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weaker


8.The stronger the attractive forces, the
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at which a liquid boils: higher
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9.What are the three types of intermolecular forces?:
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dipole-dipole london dispersion forces |! |! |!




hydrogen bonding |!




10.Where are dipole-dipole forces present?: polar molecules
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11.Where are london dispersion forces present?: nonpolar
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molecules and noble gasses |! |! |!




12.Are London dispersion forces weak or strong?: weak
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2 |! / |!
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