1. The difference between incomplete and complete combustion of propane gas.

2. Equations 2C3H8 + 7O2 2C + 2CO + 8H2O + 2CO2
Complete Combustion
Incomplete Combustion
2C3H8 + 7O2 2C + 2CO + 8H2O + 2CO2
Propane + Oxygen Carbon+ Carbon Monoxide + Water + Carbon Dioxide
C3H8 + 5O2 ---> 3CO2 + 4H2O
Propane + Oxygen- Carbon Dioxide + water
Equations

3. What is propane?
Propane is a by product of gasoline, with the chemical equation C3H8
Propane is normally a gas but can be compressed to a liquid for transport
It is mainly used for barbeques, home heating, engine fuel and portable stoves.

4. What are incomplete and complete combustion?
Complete combustion takes place when there is excess oxygen
Incomplete combustion is when there is not enough oxygen for complete combustion.
When incomplete combustion occurs it forms water, carbon dioxide and carbon monoxide.
When complete combustion of propane occurs it only forms water and carbon dioxide.

5. Chemical equation for incomplete combustion of propane
Black=C
Red=O
(except in picture 2)
White=W + + + +
Chemical equation for incomplete combustion of propane

6. Chemical Equation for complete combustion of propane+
Black= C
Red = O
White = H
Blue = S +

7. Evidence of chemical change
Incomplete combustion
Complete combustion
Lean Burn- occurs when there is less than 4% Propane, resulting in a flame that rises and extinguishes itself rapidly.
Rich burn- Occurs when there is more than 4% of propane. The end result being a much lager flame that is yellow in color.
Evidence of chemical change

8. Walter O. Snelling Born Dec 13 1880
He was a chemist that contributed to the development of explosives and liquefied petroleum gas.
He identified propane as a component in gasoline in 1910.
He also invented the under water detonator in 1907

9. The End