Incomplete and complete combustion

Combustion

Hydrocarbons reacting with oxygen

Oxidation reaction

Combustion

Complete combustion

Plentiful supply of oxygen

Air hole fully open

CO2 and H20 produced

Energy is released

Incomplete combustion

Limited supply of oxygen

Air hole is closed

Less energy is given out

Products are carbon, carbon monoxide, carbon dioxide and water

Carbon can produce smoke or soot

Soot

Blocks pipes which carry away waste gases

Blackens buildings

Causes breathing problems if collected in lungs

How is carbon monoxide a toxic gas

You cannot see it as it is colourless

You cannot smell

Can be detected by carbon monoxide alarm

Carbon monoxide poisoning

Combines with hemoglobin more easily then oxygen

Reduces oxygen in blood stream

Affected people can be feel sleepy or unconscious

Can lead to death

Alkaline + Water = Carbon dioxide + water