Alkenes
I can describe and explain the reactions and properties of the first four alkenes.
Alkenes
I can describe and explain the reactions and properties of the first four alkenes.
Lesson details
Key learning points
- Reactions of an alkene happen at its functional group, C=C.
- Reactions of an alkene change it from an unsaturated to a saturated molecule.
- Larger alkenes have higher boiling points and are less flammable.
- Alkenes tend to burn with smoky flames due to incomplete combustion.
- Isomers are structures with the same molecular formula, but different arrangement of atoms in space.
Common misconception
The shortest alkene is one containing only one carbon atom.
Teach that alkenes contain the C=C bond and therefore the shortest alkene is ethene.
Keywords
Functional group - The functional group is the atom or group of atoms responsible for the way a compound reacts.
Unsaturated - Unsaturated compounds contain at least one carbon-carbon double covalent bond.
Saturated - Alkanes are saturated hydrocarbons as they contain only single bonds between carbon and hydrogen atoms.
Isomers - Isomers are structures with the same molecular formula, but different arrangement of atoms in space.
Alkenes - Alkenes are unsaturated hydrocarbons that contain the C=C functional group.
Equipment
Molymods (optional to use).
Licence
This content is © Oak National Academy Limited (2024), licensed on Open Government Licence version 3.0 except where otherwise stated. See Oak's terms & conditions (Collection 2).
Video
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Starter quiz
6 Questions
Exit quiz
6 Questions
compounds that contain at least one carbon–carbon double covalent bond
compounds that contain only single covalent bonds
hydrocarbons that contain the C=C functional group
the atom or group of atoms responsible for the way a compound reacts
