TO DO…
Finish your modeling kit chart
Building Models
– With your table partners: Use the element model kit at your
table to build all components that are present in our air.
Everyone at your table must contribute at least one
compound or molecule to the group. Use the key below as a
guide:
Blue = Nitrogen
Red = Oxygen
SIlver = Argon
Black = Carbon
– Make sure all compounds that your build are stable or
“happy” with their desired amount of valence electrons. If
they are not stable, fix them! (They should all be stable
compounds)
Building Compounds
• Step 5: Sketch your compounds
– In your journal create the following
chart for each compound in air
– You must have a total of 6 drawings
•
•
•
•
•
•
Nitrogen
Oxygen
Argon
Carbon Dioxide
Water Vapor
Methane
Repeat this chart for the other
three compounds listed above.
Nitrogen Oxygen
Argon
Sketch Model
Sketch Model
Sketch Model
Lewis
Structure
Lewis
Structure
Lewis
Structure
Compound
Formula
Compound
Formula
Compound
Formula
Answer the following questions in the TO-DO
section of your journal….Title it Bonding Review
1.
2.
3.
4.
5.
6.
How can you tell if an element or compound is stable?
Pollutants are unstable compounds. Are the compounds in our
air that you built today pollutants? How do you know?
What did the sticks represent in your models?
There are three types of bonding (Ionic, Covalent, Metallic).
Which type of bonds were created with your model kits today
and how do you know?
Why didn’t argon have any holes? What does that tell you
about an element’s ability to react/bond with another
element?
Make a prediction as to which element the yellow model
would represent and why?
Counting Compounds

Today’s goal is to learn how to count the number
of elements in each compound…

Small subscript numbers count for the element
symbol BEFORE the subscript

EX. H2O
(The small 2 means there are two Hydrogens and only one
oxygen)

A big coefficient BEFORE the element symbol represents
multiplication (like in math)

EX. 2H2O = 2 sets of two Hydrogen (4 Hydrogens) and only one
oxygen
Try a harder one…

C2H5OH





C=?
H=?
O=?
Total = ?
2C2H5OH

C=?
H=?
O=?
Total = ?

ANSWERS ON NEXT SLIDE…



Answers…

C2H5OH





C=2
H=6
O=1
Total = 9
2C2H5OH




C=4
H = 12
O=2
Total = 18
PRACTICE TIME
Grab a Counting Atoms Worksheet and complete both sides.

You may need to use a computer (Google) to help you identify the compound
formulas of problems 9 – 16


Here is a start: http://www.chem4kids.com/files/atom_naming.html
Air Quality Demo
Color Key
 Blue—pollutants from consumer products and paints (VOCs)
 Green—pollutants from lawn, garden, and construction
machinery (CO, NO2, PM10, SO2, and VOCs)
 Red—pollutants from cars and trucks (CO, NO2, PM10,
SO2, and VOCs)
 Yellow—pollutants from power plants and industrial
processes (CO, NO2, PM10, SO2, and VOCs)
Combustion Reading & Model Kits

Grab an Air Quality book from the side counter
and read pages 97-100.

In your journal (lab tab), create an entry called
Combustion and Particulate Matter

Define the following words as you read:





Combustion
Soot
Fuel
Also: Answer all “Stop & Think” questions in your
journal.
After reading, complete the model kit activity on
page 99-100 and document your structures in
your journal
Sickening Six Reading Guide…


Copy the chart below into your journal and fill it in as you read pages
114-120 in your Air Quality book.
After you are done with the chart, answer the questions on page 120 in
complete sentences.
Pollutant
Soot (Particulate Matter)
Carbon Monoxide
Sulfur Dioxide
Nitrogen Monoxide
Ozone
Mercury
Compound
Formula
Effect on Health
To Do…


Share your sickening six reading chart with
your table group
If you have not completed, answer questions
on pg. 120
Sickening Six Reading Guide…


Copy the chart below into your journal and fill it in as you read pages
114-120 in your Air Quality book.
After you are done with the chart, answer the questions on page 120 in
complete sentences.
Pollutant
Soot (Particulate Matter)
Carbon Monoxide
Sulfur Dioxide
Nitrogen Monoxide
Ozone
Mercury
Compound
Formula
Effect on Health
“Rap” it Up…



Pick a group of three…you will create a 1-2
minute rap for your air pollutant…
We will act it out as a class…
10 minutes to plan it out…
Air Quality Activity

Each individual at your desk will need:




Clear plastic cup filled ¾ with water
Box of food dye
Journal open to “Daily Activities” to record
notes and observations: Title it AIR QUALITY
ACTIVITY
Copy the notes on the next page and complete
the activity as a class…
AIR QUALITY: POLLUTION