Save
Chemistry
Organic
Alkenes and Alcohols (AS)
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Gracie Ward
Visit profile
Cards (18)
Alkenes are
unsaturated hydrocarbons
that contain at least
one double bond
between
carbon
atoms.
Have a
general
formula of
CnH²n
Mix alkane with
bromine water
-
bromine water
stays
orange.
Mix alkene with
bromine
water -
bromine
water goes from
orange
to
colourless.
Steroeisomers
have the same
structural
and
molecular
formula but their atoms are arranged
differently
in
space.
Structural
isomers have the same
molecular
formula but a different
structural
formula.
Substitution reaction
occurs when one part of a compound is
replaced
by another.
In
electrophilic addition
, the
double
bond is a region of high
electron
density
it is easily
attacked
by
electrophiles.
The
major
product is more
stable
than the
minor
product.
A
tertiary
carbonation has
3 R
groups attached.
A secondary carbonation had
2 R
groups
attatched.
A primary carbocation has one R group attached.
Polymer
- a
long chain molecule
made from lots of
small molecules
joined together.
Monomer
-
small
molecules that
join
together to make
polymers.
Addition polymerisation
-
formation
of
long chain molecules
from lots of
small molecules joining
together with no other
products.
Intermolecular
forces between
polymer
chains are
weak.
Longer
chains with
fewer branches
have stronger
intermolecular
forces, making them
stronger
and more
rigid.
Plasticisers
can be added to polymers to modify their
properties
making it more
bendy.