Bonding Problem Set 1
Name ______________________________
Types of Bonding
1.
What is meant by a chemical bond? Why do atoms form bonds with each other? Why do some elements exist
as molecules in nature instead of as free atoms?
(Zumdahl, 9th edition, Ch. 8, 10)
2. Classify the following bonds as ionic, polar covalent, or nonpolar covalent:
a. the CC bond in H3CCH3
b. the KI bond in KI
c. the NB bond in H3NBCl3
d. the CF bond in CF4
(Chang, 11th edition, 9.39)
3. Some plant fertilizer compounds are (NH4)2SO4, Ca3(PO4)2, K2O, P2O5, and KCl. Which of these compounds
contains both ionic and covalent bonds?
(Zumdahl, 9th edition, Ch. 8, 17)
4. Arrange the following bonds in each of the following sets in order of increasing polarity:
a. C – F , O – F , Be – F
b. O – Cl , S – Br , C – P
c. C – S , B – F , N – O
(Brown/Lemay, 12th edition, 8.42)
5. Indicate the bond polarity (show the partial positive and partial negative ends) in each of the following
bonds:
a. C – O
b. P – H
c. H – Cl
d. Br – Te
e. Se – S
(Zumdahl, 9th edition, Ch. 8, 34)
6. For each of these Lewis symbols, indicate the group in the periodic table in which element X belongs:
a.
b.
c.
(Brown/Lemay, 12th edition, 8.1)
7. What is the Lewis symbol for each of the following atoms or ions?
a. K
b. As
c. Sn2+
d. N3(Brown/Lemay, 12th edition, 8.14)
8. Use Lewis symbols to represent the reaction that occurs between Ca and F atoms.
(Brown/Lemay, 12th edition, 8.16)
9. An ionic bond is formed between a cation A+ and an anion B-. How would the energy of the ionic bond be
affected by the following changes?
a. doubling the radius of A+
b. tripling the charge on A+
c. doubling the charges of A+ and Bd. decreasing the radii of A+ and B- to half their original values
(Chang, 11th edition, 9.15)
10. Answer the following questions regarding lattice energy:
a. Does the lattice energy of an ionic solid increase or decrease:
i. as the charges of the ions increase?
ii. as the sizes of the ions increase?
b. Arrange the following substances according to their expected lattice energies, listing them from the
lowest lattice energy to the highest:
MgS, KI, GaN, LiBr
(Brown/Lemay, 12th edition, 8.24)
11. The partial Lewis structure that follows is for a hydrocarbon molecule. In the full Lewis structure, each
carbon atom satisfies the octet rule, and there are no unshared electron pairs in the molecule. The carboncarbon bonds are labeled 1, 2, and 3.
c. Determine where the hydrogen atoms are in the molecule.
d. Rank the carbon-carbon bonds in order of increasing bond length.
e. Rank the carbon-carbon bonds in order of increasing bond energy.
(Brown/Lemay, 12th edition, 8.7)
12. State which of the following has a permanent dipole moment. (Use the below QR Code to see the images).
(Zumdahl, 9th edition, Ch. 8, 39)