CHEM 151 Exam 5 with complete |! |! |! |! |! |!
solutions
1.What are the three states of
|! |! |! |! |! |!
matter?: solids liquids
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gasses
2.What is the main diffrence between the states of matter?: the
|! |! |! |! |! |! |! |! |! |! |!
distance of the particles (close in liquids and solids, far in
|! |! |! |! |! |! |! |! |! |! |!
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
|! |! |! |! |! |! |! |!
more molecules or atoms
|! |! |!
1 |! / |!
15
, 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
|! |! |! |! |! |! the temperature |! |!
at which a liquid boils: higher
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9.What are the three types of intermolecular forces?:
|! |! |! |! |! |! |! |!
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 |! / |!
15
solutions
1.What are the three states of
|! |! |! |! |! |!
matter?: solids liquids
|! |!
gasses
2.What is the main diffrence between the states of matter?: the
|! |! |! |! |! |! |! |! |! |! |!
distance of the particles (close in liquids and solids, far in
|! |! |! |! |! |! |! |! |! |! |!
gasses)
3.What are intramolecular forces?: forces that hold the atoms
|! |! |! |! |! |! |! |! |!
together
4.What are intermolecular forces?: forces between two or
|! |! |! |! |! |! |! |!
more molecules or atoms
|! |! |!
1 |! / |!
15
, 5.How are intramolecular bonds drawn?: as solid lines
|! |! |! |! |! |! |!
6.How are intermolecular bonds drawn?: as dashed lines
|! |! |! |! |! |! |!
7.Intermolecular forces are |! |! |! than intramolecular forces:
|! |! |!
weaker
8.The stronger the attractive forces, the
|! |! |! |! |! |! the temperature |! |!
at which a liquid boils: higher
|! |! |! |! |!
9.What are the three types of intermolecular forces?:
|! |! |! |! |! |! |! |!
dipole-dipole london dispersion forces |! |! |!
hydrogen bonding |!
10.Where are dipole-dipole forces present?: polar molecules
|! |! |! |! |! |!
11.Where are london dispersion forces present?: nonpolar
|! |! |! |! |! |! |!
molecules and noble gasses |! |! |!
12.Are London dispersion forces weak or strong?: weak
|! |! |! |! |! |! |!
2 |! / |!
15
