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Modern Chemistry 51 Chemical Bonding
CHAPTER 6 REVIEW
Chemical Bonding
MIXED REVIEW
SHORT ANSWER Answer the following questions in the space provided.
1. Define and describe the range of electronegativity difference for the following
types of bonds:
ionic bond
polar covalent bond
nonpolar covalent bond
2. Define electronegativity ___________________________________________
3. chemical bond-_________________________________________
4. As bond length decreases, bond energy ___________________________
5. Distinguish among the three intermolecular forces:
a. hydrogen bond
b. dipole-dipole
c. London dispersion
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Modern Chemistry 52 Chemical Bonding
4. . Use the electronegativity values shown on your periodic table to determine
whether each of the following bonds is nonpolar covalent, polar covalent, or
ionic.
a. HF
_______________ b. NaCl
c. _ HO
d.
H
H
5. How is a hydrogen bond different from an ionic or covalent bond?
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
6. Distinguish between a structural formula and a chemical formula
______________________________________________________________
7. H2S and H2O have similar structures and their central atoms belong to the
same group. Yet H2S is a gas at room temperature and H2O is a liquid. Use
bonding principles to explain why this is.
_______________________________________________________________
_______________________________________________________________
_______________________________________________________________
8. Name four elements which are exceptions to the octet rule
_______________ ______________ ____________________ ______________
9. Compare and contrast ionic and covalent compounds by completing the chart
below
Ionic Covalent
Types of elements
basic unit
Physical state at room
temperature
Melting points
Conductivity
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Modern Chemistry 52 Chemical Bonding
9. Complete the following chart:
Forces: ionic bond, network covalent bond, metallic bond, hydrogen bond,
dipole-dipole, London disperion
Substance force MELTING POINT C
Bi 324
CaF2 1423
CH4 -182
water 0
Ba 727
KCl 770
HClO -5
diamond 65000(at very high
pressure)
Lewis
structure
Polar or
nonpolar
ABE Shape IMF High Med
or low
boiling
point
Solid,
liquid or
gas
PI3
CCl2O
X
HI
X
CS2
OBr2
AlCl3
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Name _______________________________ Date __________________ Class __________________
Original content Copyright © by Holt, Rinehart and Winston. Additions and changes to the original content are the responsibility of the instructor.
Modern Chemistry 51 Chemical Bonding
SO4--2
PO3-3
PCl5
X X