Ethanol Investigation
The 3 Rules About Atoms
Chemical Reactions
Other Examples of Combustion
Grab Bag
Final Jeopardy Question
100
True or False: Molecules of water contain high energy bonds.
False
100
True or False: When a person exercises and their body heat increases, they gain mass due to the added heat.
False
100
What do we call the “output” substances of a chemical reaction?
Products
100
What are the 2 products of any combustion reaction?
CO2 and H2O
100
What is the name of the Hazen mascot?
Gordy the Highlander
100
Fill in the missing part of this reaction taking place when soda water fizzes. (Your answer should be ONE molecule)
????? => CO2 + H2O
H2CO3 => CO2 + H2O
200
What type of molecules must be present before the chemical reaction of Ethanol Burning?
Ethanol & oxygen
200
What is the difference between an atom of oxygen and a molecule of oxygen?
Molecule: 2 or more atoms bonded
Atom: A single unit
200
True or False: When ethanol burns, heat and light are released. That energy came from the flame in the lighter.
False
200
List a combustible fuel OTHER than ethanol that you know.
Gasoline, wood, butane, octane, etc
200
What is the capital of Washington?
Olympia
300
What form of energy does Ethanol have?
Potential Energy or Stored Energy
300
True or False: An object can ONLY lose mass when atoms move away from it.
True
300
What is the chemical formula for ethanol?
C2H5OH or C2H6O
300
When wood (cellulose) burns, what physically leaves in order for the wood to lose mass?
CO2
300
What is the main component of most human waste products?
Water
400
Why is it important to have a balanced equation when writing a chemical reaction?
Because you cannot create or destroy matter
400
Air has mass. What are the components of air that contribute to its mass? List all molecules.
N2, O2, H2O, & CO2
400
What do we call the “input” substances in a chemical reaction?
Reactants
400
True or false: Combustion reactions are not reversable.
True
400
In terms of evolution, which came first - the chicken or the egg?
The egg! (Eggs evolved as a reproductive strategy WAY before chicken came around)
500
During the Ethanol burning investigate, what forms of energy were released?
Light and heat
500
How many times does a carbon atom bond?
4 times
500
What do fuels, food, and living/once living bodies all have in common?
High energy (C-C, C-H) bonds; Organic; Can burn
500
What is the general term for fuels composed entirely of hydrogen and carbon atoms? 
Hydrocarbons
500
What is the name of one of Ms. Bucher's pets?
Double points if you can name all 3!
Ella, Riley, and Duke