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Products from Oil

What is the Combustion of Hydrocarbons?

Hydrocarbons are mainly used as fuels.
The burning of a substance in air is called combustion.
In chemistry, combustion (or burning) means reacting
with oxygen. Combustion is a form of oxidation.
The main products of combustion from hydrocarbons
are carbon dioxide, water and heat.
The reaction is exothermic (it gives out heat).

The original source of this energy is the Sun!
Plants take in energy from the Sun during photosynthesis.
Fossil fuels (which are the source of hydrocarbons) come
from the decay of plants or the animals which fed on them.
Combustion of fossil fuels releases the energy which has been
stored up in the plant and animal remains for millions of years.

Fossil fuels are a finite resource.
This means that there is only a certain amount of them.
Fossil fuels are a non-renewable energy source.
Once used, they are gone. We would have to
wait for millions of years for nature to replace
our coal, oil and natural gas reserves - see renewable.

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