When hydrocarbons burn, they
react with OXYGEN in the air.
When hydrocarbons burn
completely, the only
products are WATER
and CARBON DIOXIDE
methane + oxygen = water and carbon dioxide
Is an exothermic reaction
Incomplete
Combustion
When hydrocarbons burn in a limited supply of
air, the amount of oxygen is not enought to
oxidise al the carbon dioxide.
Some of the carbon is released as black soot.
Some of it reacts with oxygen to from carbon
monoxide which is a poisonous gas with no smell,
taste and is colourless.