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AQA A-Level Chemistry Alkenes
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A complete set of notes for the Alkenes topic for AQA A-Level Chemistry. These notes are all tailored to the specification and is a complete resource.
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14 Alkenes, Properties
π bonds are exposed and have a high
electron density which can be attacked by
Alkenes are unsaturated positively charged reagents called
compounds containing a C=C electrophiles
double bond, with a general
formula of CnH2n *most reactions of alkenes are electrophilic
addition reactions*
van der Waals are the only forces acting
The C=C double covalent
between molecules so the physical
bond consists of one sigma
properties are very similar to those of
(σ) bond and one pi (π) bond
alkanes – melting/boiling point increases
– the pi bond restricts rotation
with chain length, and they are insoluble in
of the alkene
water
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