1. Reactions with Hydrocarbons

2. Definition
A hydrocarbon is an organic compound that contains only CARBON and HYDROGEN atoms.
We burn many hydrocarbons as FUEL

3. Examples

4. Examples

5. Combustion Combustion means burning or to burn.
Combustion can be either complete or incomplete
Incomplete combustion can be very dangerous!

6. Complete Combustion When a hydrocarbon is burned with lots of oxygen
Exothermic
Equation:
Hydrocarbon + LOTS of  carbon + water
oxygen dioxide
Ex: CH4 + 2O2  CO2 + 2H2O

7. Incomplete Combustion
A hydrocarbon is burned with NOT ENOUGH oxygen
Exothermic
Equation:
Hydrocarbon + little  carbon + water + carbon + carbon
oxygen dioxide (soot) monoxide
Ex: 4CH4 + 6O2  CO2 + 8H2O + C + 2CO

8. ***carbon monoxide is very dangerous!

9. Time to look at hydrocarbons and their structure!