Consider the chlorides SnCl2, BCl3, and SCl2. Of the compounds
SnCl2, BCl3, and SCl2, which molecules will be polar and which will
be non-polar? Sketch the molecules and show the overall dipole
moments.
Which of the following describes an aqueous solution? a mixture
of nonpolar molecules dissolved in a polar solvent a mixture of
polar molecules dissolved in a nonpolar solvent a mixture of some
compound dissolved in water None of these a mixture of water
dispersed in an ionic compound
Which of the following molecules has bond polarity but
no molecular polarity?
A: N2
B: SCl2
C: NH3
D: CO2
The VSEPR theory is used to predict molecular shapres, based on
the arrangement of-
A: lone pairs of
electrons on the outer atoms
B: lone pairs of
electrons on the central atom
C: bonding pairs of
electrons on the central atom
D: bonding and lone
pairs on the central atom
Which of these molecules has a central atom surrounded by...
A molecular dipole moment is a result of which of the
following?
nonpolar bonds
a molecule with dipole moments that cancel each other out
polar bonds
ionic bonds
31. Which of the following describes the distribution of the
polar and nonpolar portions of lipids in the lipid bilayer? A).
Both polar heads are on the inside of the bilayer and both
hydrophobic tails are on the outside of the bilayer. B). Both polar
heads are on the outside of the bilayer and both hydrophobic tails
are on the inside of the bilayer. C). Both the inside and outside
of the bilayer consist of alternating polar heads and nonpolar...