Comparing Alkenes and Alkanes for GCSE
Alkanes and Alkenes: teaching
compare and contrast
Alkanes
Alkenes
Neither alkene or alkane
Saturated
Double bond
Hydrocarbon
Formed by 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 form 3 bonds
Contains strong ionic bonds
Covalently bonded
Used as fuels
Decolourises bromine water
General formula C
n
H
2n
Reacts with oxygen to form
carbon dioxide and water
Complete the Venn diagram using these terms
The characteristics and differences between alkenes and alkanes in this resource designed for GCSE level science students. Learn about their molecular structures, reactions, and importance in the study of hydrocarbons. Engage with visual aids like Venn diagrams to deepen your understanding of these fundamental concepts in chemistry.
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Presentation Transcript
Topic Alkanes and Alkenes Level GCSE Outcomes 1. To compare and contrast alkenes with alkanes www.thescienceteacher.co.uk | resources for science teachers who like to think
Alkanes and Alkenes: teaching compare and contrast
Alkenes Alkanes Neither alkene or alkane
Complete the Venn diagram using these terms Have only single bonds Saturated Contains oxygen Double bond Has the molecular formula C20H42 Hydrocarbon Carbon atoms form 3 bonds Formed by cracking Contains strong ionic bonds Very high melting point Covalently bonded Extracted from crude oil Used as fuels Reacts with bromine water Decolourises bromine water Renewable General formula CnH2n React with steam to produce ethanol Reacts with oxygen to form carbon dioxide and water Belong to a homologous series
