Reference no: EM131440054
Assignemnt
Question 1
Hydrogen bonding typically occurs between molecules that have a hydrogen atom covalently bonded to __________.
a. a sodium atom
b. another hydrogen atom
c. nitrogen, oxygen, or fluorine
Question 2
Why does a gas become less soluble in a liquid solvent as the temperature of the liquid increases?
a. faster moving liquid molecules push the gas molecules out of the solution
b. the gas molecules break down at higher temperatures
c. the volume of the gas decreased
Question 3
Which is the strongest intermolecular force that exists between Br2 molecules?
a. dipole-induced dipole
b. induced dipole-induced dipole
c. Ion-dipole
Question 4
Why is the negatively charged portion of a soap molecule more attracted to calcium and magnesium ions in hard water than its own sodium ion?
a. sodium ions are nonpolar
b. calcium and magnesium ions are negatively charged
c. calcium and magnesium have a larger positive charge (+2)
Question 5
If a substance has a very low boiling point, it is likely to be a _________ at room temperature.
a. gas
b. boiling point is unrelated to phase
c. solid.
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