Polymers are used to
make many everyday
items e.g plastics and
clothing.
Alkanes
Methane
Molecular
Formula
CH4
Propane
A __________ is a long chain
molecule made from lots of small
molecules added together. These
small molecules are known as
_________ and must contain a
carbon, carbon _________
bond. Addition ____________
is the reaction that makes
polymers and it requires a
_______ pressure and a
_________.
What are the 2 types
of combustion?
Alkenes
Molecular
Formula
Ethene
Butene
H
List some of the uses
of polymers
Cl
C=C
H
H
This is the monomer chloroethene:
Draw 3 repeat units of the polymer and give
its’ name:
In the boxes below draw a diagram
to show the differences between
Nylon and Gore-Tex:
Methane + __________
Under the following headings explain some
of the problems with plastic disposal:
Burning:
Landfill:
Recycling:
Fill in the blanks on the diagram on the left.
Combustion is the
reaction where a
reacts with ______.
Complete combustion gives
the products; _______
_______ and _______.
Incomplete combustion
produces water and can also
give _______, _________
and ________
The atoms of the monomers are held together
by ________ intramolecular bonds. The
polymer chains are held together by weak
__________ forces. Plastics with ______
forces between chains have ___ melting
points and stretch easily. Some polymers form
______ cross-linking bridges giving the
polymer a high _______ point and making
them _____.
Complete the following word
equations for complete combustion:
_________ _________ + Water
Endothermic or Exothermic?
Reactions can either
_________ or use up
_______ energy. Reactions
that produce (give out) energy
are known as ____________,
which can be spotted by an
_________ in temperature.
____________ reactions ___
__ heat energy and result in a
temperature __________.
Describe a practical you would carry out to
investigate which fuel provides the most
energy...
100g of water is heated using propane.
The temperature of the water increases
by 15C and 0.7g of the fuel is burnt.
How much energy is needed to heat the
fuel?