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.
These resources will be removed by end of Summer Term 2025.
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.
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.
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.
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).
Lesson 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
