Name ____________________
CHEM 1004
Homework #8
Spring 2011
Buckley
This homework is due on Tuesday, March 1, at class time. The assignment will be accepted until
the start of class on Wednesday, March 2, with a 20% penalty. Assignments turned in after class
that day will receive no credit, though I will look through them if you want me to.
1. (10 points) Write formulas for and name compounds formed between the following
species.
Formula
Name
a. Mg and S
___________________
________________________
b. Cs and N
___________________
________________________
c. Ba and PO43-
___________________
________________________
d. Zn and Br
___________________
________________________
e. Fe3+ and SO42-
___________________
________________________
2. (5 points) Write the formula for the following compounds.
Formula
a. calcium hydroxide
______________________
b. ammonium sulfide
______________________
c. lead (IV) nitrate
______________________
d. gold (III) nitride
______________________
e. diphosphorous pentoxide
______________________
←←←←←PLEASE TURN THE PAGE OVER→→→→→
3. (20 points) For the following species:
a. Draw the Lewis structure.
b. State the molecular shape.
c. State whether the molecule is polar or nonpolar.
Species
CHF3
NH4+
SO3
BrO3-
N2H4
Lewis Structure
Molecular
Shape
Polar or
Nonpolar?