1 The alkanes are generally unreactive. Their reactions include combustion, substitution and
cracking.
(a) The complete combustion of an alkane gives carbon dioxide and water.
(i) 10 cm3
of butane is mixed with 100 cm3
of oxygen, which is an excess. The mixture
is ignited. What is the volume of unreacted oxygen left and what is the volume of
carbon dioxide formed?
C4H10(g) + 6 O (g) 2 2
1 4CO2(g) + 5H2O(l)
cm3 Volume of oxygen left =
Volume of carbon dioxide formed = cm3
Answers: 1
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1 The alkanes are generally unreactive. Their reactions include combustion, substitution and
cracki...
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