Molecular Shapes and Bond Polarity
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Problem 4.100. Select the more polar bond in each of the following pairs.
Part A: C-C or C-O
Part B: P-Br or P-Cl
Part C: Si-S or Si-Cl
Part D: F-Cl or F-Br
Part E: P-O or P-S
Problem 4.104
Classify each of the following bonds as nonpolar covalent, polar covalent, or ionic.
Part A: C-N
Part B: Cl-Cl
Part C: K-Br
Part D: H-H
Part E: N-F
Problem 4.106. Predict the shape and polarity of each of the following molecules. Assume all bonds are polar.
Part A. A central atom with four identical bonded atoms and no lone pairs.
linear; trigonal planar; bent; tetrahedral; pyramidal
Part B
polar; nonpolar
Part C
A central atom with three identical bonded atoms and one lone pair.
linear; trigonal planar; bent; tetrahedral; pyramidal
Part D
polar; nonpolar
Part E
A central atom with four bonded atoms that are not identical and no lone pair.
linear; trigonal planar; bent; tetrahedral; pyramidal
Part F
polar, nonpolar
Problem 4.110 Predict the shape and polarity of each of the following molecules.
Part A, H2O
linear; trigonal planar; bent; tetrahedral; pyramidal
Part B
polar; nonpolar
Part C: CF4
linear; trigonal planar; bent; tetrahedral; pyramidal
Part D
polar; nonpolar
Part E: GeH4
linear; trigonal planar; bent; tetrahedral; pyramidal
Part F
polar; nonpolar
Part G: PCl3
linear; trigonal planar; bent; tetrahedral; pyramidal
Part H
polar; nonpolar
Part I: SCl2
linear; trigonal planar; bent; tetrahedral; pyramidal
Part J
polar; nonpolar
Problem 4.12
Write the correct ionic formula for compounds formed between the following ions.
Part A: Al3+ and Cl-
Part B: Ca2+ and S2-
Part C: Li+ and S2-
Part D: K+ and N3-
Part E: K+ and I-
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