Honors Chemistry
Name: ________________________________________________________MODs:_________
Partner(s) : ____________________________________________________________________
“Build a Balloon Molecule”
Materials: Balloons (different colors), string, worksheet
SAFETY: Due to latex allergies, NONE OF THE BALLOONS MAY LEAVE THIS CLASSROOM for
any reason! The door will remain closed during the lab
Directions: For your given molecule, answer the following questions. Next, build your molecule out of the
balloons and leave behind for all your classmates to see. After each group has completed their molecules,
you will rotate through each group and complete the chart attached to this lab.
Helpful Hints:
 All nonbonding pairs are represented by one color and all the non-bonding pair with another.
 Non-bonding pair’s balloon will be blown up larger than the bonding pair.
 All balloons should be fairly full but not to the point of bursting
 There will not be a central atom. The knot where all the balloons come together will serve that
purpose.
1. Chemical Formula: ______________
________________
2. Compound/Ion Name:__________________________
_______________________
3. Lewis Structure:
4. # Electron Domains/Regions:__________
__________
5. # Bonding electrons: _______
________
6. # Non-bonding electrons: _______
________
7. Shape:________________________
_________________________
8. Bond angles:________________________
____________________________
9. Polarity: ___________________________
____________________________
List of molecules: (to be assigned among the class)
1.
2.
3.
4.
CO2
NO3NH3
CCl4
5.
6.
7.
8.
H20
PCL5
SF4
ClF3
9.
10.
11.
12.
XeF2
SF6
BrF5
XeF4
Build a Molecule – Summary Worksheet
Formula
1. CO2
2. NO3-
3. NH3
4. CCl4
5. H20
6. PCL5
7. SF4
8. ClF3
9. XeF2
10. SF6
11. BrF5
12. XeF4
# electron
Domains
#Bonding
pair
electrons
# Nonbonding
pair
Molecular
Geometry(ED
& MG)
Polarity
(P or NP)