Combustion reactions

Oxidation

A chemical reaction in which the atoms of an element combine with oxygen. They are exothermic because they involve the release of energy

Fuel

A substance that will undergo a chemical reaction in which a large amount of useful energy is produced at a fast, but controlled rate.

corrosion reactions

Are combustion reaction that occur relatively slowly with no flame or sounds being produced.

Oxidation reactions

Are combustion reactions that occur very quickly and involve the release of large amounts of energy in the form of sound as well as heat and light

Advantages of using alcohol in petrol

Both Methanol and ethanol produce less pollutants then petrol. Methanol also improves engine performance.

Non-metals

Do not react with oxygen

Metal oxide

Is formed through the reactions between metals and oxygen and results in the formation of an ionic compound. If reaction occurs quickly, we see a flame but if it happens slowly we see nothing.