1. Saturated hydrocarbons are called alkanes
2. Small chain alkanes are used as fuels
3. The reaction is called combustion
4. The word equation for this chemical reaction is :
fuel (alkane) + oxygen → water + carbon dioxide+ ENERGY (heat, light, sound)
5. If there is insufficient oxygen then the word equation is:
fuel (alkane) + oxygen → carbon monoxide + water + ENERGY (heat, light, sound)
6. The problem with this reaction is that carbon monoxide is produced this gas is toxic to the human body (see objective 5.11)
7. Where can you find incomplete combustion?
In car engines or in your house when you burn fire.
8. What is used to reduce the harmful products from incomplete combustion?
Use a catalytic converter to convert CO to CO29. During incomplete combustion a smoky flame is often seen, explain this observation
Extn: write a balanced equation (with state symbols) for the combustion of propane gas
This is soot which is formed by unburnt carbon
This is soot which is formed by unburnt carbon
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