Chemistry HW Chapter 6
Name:_____________________
Define the Following terms in your own words:
1. Chemical Bond - ____________________________________________
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2. Covalent Bond - ____________________________________________
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3. Ionic Bond - _______________________________________________
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FOR 4 AND 5 SEE SAMPLE PROBLEM A, PAGE 177 AND CHART ON 176
4. Using a table of electronegativities like on page 161 of your text, determine if the
following bonds are ionic, covalent, or polar covalent.
Bond
Type
Bond
H and O
N and O
H and C
Na and O
Ca and H
H and F
Li and S
Cl and Cl
Type
5. Using a table of electronegativities like on page 161 of your text, determine if the
following compounds are ionic, covalent, or polar covalent.
Compound
Type
Compound
C6H6
NO2
NaCl
Sr3P2
CaBr2
WS3
BF3
N2
Type
Lewis Structures and Structural Formulas.
Name:_________________________________
Build the model and draw Lewis and Structural Formulas for each
H2S (hydrogen sulfide)
PF3 (Phosphorus trifluoride)
BF3
CF2Cl2 (dichlorodifluromethane)
(B fulfills the octet rule by having only 6 electrons around it;
that’s just how it rolls)
O3 (Ozone)
Not possible to model; you will be wrong.
CO2
C2H4O2 (5 isomers)
C6H12 (7 isomers, only 1 sensible one)
CH3NO (3? isomers)
C2H2O (3 isomers, 1 hypothetical)
Lewis Structures, VSEPR, Polarity,
For each of the following molecules, draw the Lewis structure, indicate the molecular shapes, indicate
the molecular polarity (if any).
Molecule
CCl4
Na2O
PBr3
CS2
NCl5
TeI6
Lewis Structure
Shape (see pg. 186)
Polar? (Y or N)
VSEPR HW Problems
A. Draw a 2-D Lewis Structure
B. Identify the Molecular Shape
1. CCl2F2
2. BBr3
3. POH
4. SrF2
5. SBr6