Question

1) What types of molecules will display hydrogen bonding? a. All nonpolar molecules. b. All polar molecules. c. Nonpolar molecules containing fluorine or hydrogen. d. Polar molecules containing a hydrogen directly bonded to an electronegative atom (nitrogen, oxyen, fluorine). 2) Which species would have the strongest dispersion forces? a. Ne b. Br2 c. H2 d. Ar 3) Which state of matter has the weakest intermolecular forces? a. Gas b. Liquid c. Solid d. All states of matter have the same strength of intermolecular forces. 4) In the polar molecule HBr, what charge does the H bear? a. Partial positive b. Full positive c. Partial negative d. Full negative 5) A drop of water forms a bead on a plastic surface. What is true about this observation? a. The cohesive forces are stronger than the adhesive forces. b. The adhesive forces are stronger than the cohesive forces. c. The covalent bonds in the water are strong and there are zero intermolecular forces. d. The adhesive forces are strong enough to break the water molecules into ions. 6) Which liquid has the weakest surface tension? a. Methanol (CH3OH) b. Helium (He) c. Butane (C4H10) d. Ethylene glycol (HOCH2CH2OH) 7) Why is warm honey easier to pour than cold honey? a. Increasing the temperature breaks the molecules down into atoms, which are smaller. b. Increasing the temperature increases the kinetic energy of the molecules, which makes it easier to overcome the attractive forces between molecules. c. Increasing the temperature converts the sugars into water, which flows easier. d. Increasing the temperature makes the honey more viscous. 8) Which is NOT an example of capillary action? a. A mop cleans up a spill on the floor. b. A towel dries your hands after washing them. c. Flowers consume water after being cut. d. A paperclip floats on water.

          1) What types of molecules will display hydrogen bonding?
a. All nonpolar molecules.
b. All polar molecules.
c. Nonpolar molecules containing fluorine or hydrogen.
d. Polar molecules containing a hydrogen directly bonded to an
electronegative atom (nitrogen, oxyen, fluorine).
2)  Which species would have the strongest dispersion
forces?
a. Ne
b. Br2
c. H2
d. Ar
3) Which state of matter has the weakest intermolecular
forces?
a. Gas
b. Liquid
c. Solid
d. All states of matter have the same strength of intermolecular
forces.
4)  In the polar molecule HBr, what charge does
the H bear?
a. Partial positive
b. Full positive
c. Partial negative
d. Full negative
5) A drop of water forms a bead on a plastic surface. What is
true about this observation?
a. The cohesive forces are stronger than the adhesive
forces.
b. The adhesive forces are stronger than the cohesive
forces.
c. The covalent bonds in the water are strong and there are zero
intermolecular forces.
d. The adhesive forces are strong enough to break the water
molecules into ions.
6) Which liquid has the weakest surface tension?
a. Methanol (CH3OH)
b. Helium (He)
c. Butane (C4H10)
d. Ethylene glycol (HOCH2CH2OH)
7)  Why is warm honey easier to pour than cold honey?
a. Increasing the temperature breaks the molecules down into
atoms, which are smaller.
b. Increasing the temperature increases the kinetic energy of
the molecules, which makes it easier to overcome the attractive
forces between molecules.
c. Increasing the temperature converts the sugars into water,
which flows easier.
d. Increasing the temperature makes the honey more viscous.
8)  Which is NOT an example of capillary action?
a. A mop cleans up a spill on the floor.
b. A towel dries your hands after washing them.
c. Flowers consume water after being cut.
d. A paperclip floats on water.

Added by Cheryl M.

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