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Combustion of Alkanes

Alkanes are quite unreactive - wont react with acids, bases, oxidising and reducing agents. They do,
however, burn in oxygen.

Shorter chained alkanes will burn completely with plenty of oxygen, producing CO2 and H2O.
E.g. Methane:
CH4 (g) + 2O2 (g) -> CO2 (g) + 2H2O…

Page 2

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Combustion of Alkanes

Removing Sulfur
Calcium oxide(CaO) or limestone (CaCO3) are used to absorb the sulfur dioxide.

CaO (s) + SO2 (g) -> CaSO3 (s)

CaCO3 (s) + SO2 (g) -> CaSO3 (s)0 + CO2 (g)

Catalytic Converters
Modern cars often have catalytic converters in their exhaust systems. These reduce…


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