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Www.thescienceteacher.co.ukwww.thescienceteacher.co.uk | resources for science teachers who like to think TopicAlkanes and AlkenesLevelGCSE Outcomes1.To.

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Presentation on theme: "Www.thescienceteacher.co.ukwww.thescienceteacher.co.uk | resources for science teachers who like to think TopicAlkanes and AlkenesLevelGCSE Outcomes1.To."— Presentation transcript:

1 www.thescienceteacher.co.ukwww.thescienceteacher.co.uk | resources for science teachers who like to think TopicAlkanes and AlkenesLevelGCSE Outcomes1.To compare and contrast alkenes with alkanes

2 Alkanes and Alkenes: teaching compare and contrast

3 Alkanes Alkenes Neither

4 Saturated Double bond Hydrocarbon Formed in cracking Very high melting point Extracted from crude oil Reacts with bromine water Renewable React with steam to produce ethanol Belong to a homologous series Have only single bonds Contains oxygen Has the molecular formula C 20 H 42 Carbon atoms only form 3 bonds Contains strong ionic bonds Covalently bonded Used as fuels Decolourises bromine water General formula C n H 2n React with oxygen to form carbon dioxide and water

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