Chemistry

HideShow resource information
Whats a polymer made up of
monomers joined together
1 of 51
What is a polymer
a long chain of molecules
2 of 51
what are addition polymers made up from
unsaturated monomers
3 of 51
the monomers that make up addition polymers have what type of bonds
double covalent bonds
4 of 51
what are molecules no double bond between carbon atoms are
saturated compounds
5 of 51
what are molecules with atleast one covalent bond between carbons are
unsaturated compounds
6 of 51
whats an unsaturated monomer molcule also known as
alkene
7 of 51
What determines the properties of plastics
forces between molecules
8 of 51
if the forces of plastic are weak then there are...
weak intermolecular forces
9 of 51
if the forces of plastic are strong then there are...
covalent bonds
10 of 51
properties of weak plastics
stretched easily, low melting point
11 of 51
properties of strong plastics
rigid, cant be stretched, higher melting point
12 of 51
why cant strong plastics be stretched
crosslinks hold the chains firmly together
13 of 51
What are strong rigid polymers used for
milk bottles
14 of 51
What are light strechable polymers used for
plastic bags, squeezy bottles
15 of 51
PVC
Window frames and pipes
16 of 51
polystyrene foam
packaging
17 of 51
what polymer is a good thermal insulator
polystyrene foam
18 of 51
name a synthetic polymer
nylon
19 of 51
gortex is a mixture of what
nylon and polyrethane
20 of 51
what 'film' makes gortex breathable
PTFE film
21 of 51
hydrocarbons are also known as...
alkanes and alkenes
22 of 51
hydrocarbons contain what atoms
hydrogen and carbon
23 of 51
alkanes only contain what bonds
single bonds
24 of 51
whats an alkene
hydrocarbon that only contains a single bond
25 of 51
whats an alkane
hydrocarbon that only contains a double bond
26 of 51
carbon always has to have ..... bonds to other atoms
4
27 of 51
what happens to bromine water if an alkene is present
goes colourless
28 of 51
which part of the fractional distillation column is coldest
top
29 of 51
which part of the fractional distillation column is hottest
bottome
30 of 51
which part of the fractional distillation column does the longest molecules go to
the bottom (to large to float)
31 of 51
which part of the fractional distillation column does the smallest molecules go to
the top (to small to sink)
32 of 51
long hydrocarbons have a high...
melting point
33 of 51
small hydrocarbons have a low...
melting point
34 of 51
what are the 7 different products of fractional distillation?
LPG, Petrol, naptha, kerosene, diesel, oil, bitumen
35 of 51
What 4 things happen to hydrovarbon molecules as the size increases
boiling point increases, less flamable, more visious. less volatile
36 of 51
whats cracking
splitting up of long chain hydrocarbons
37 of 51
what are the conditions needed for cracking
high temp, a catalyst
38 of 51
why do we use cracking
to help meet supply
39 of 51
crude oil is a what source...
non renewable
40 of 51
word equation of complete combustion
hydrocarbon+oxygen->carbon dioxide+water (+energy)
41 of 51
what does incomplete combustion of hydrocarbons prodoce
carbon monoxide
42 of 51
why is carbon monoxide called the 'silent killer'
colourless, odourless and posionus
43 of 51
3 stages of the evolution of the atmosphere
1. volcanoes gave out steam and CO2 2.green plants evolved and produced oxygen 3. ozone layer allows evolution of complex animals
44 of 51
what are the percentages of gas in our atmosphere
78% nitrogen, 21%oxygen, 0.035% carbon dioxide
45 of 51
what is acid rain caused by
sulfur dioxide and oxides of nitrogen
46 of 51
whys acid rain bad
kills fish, trees and statues
47 of 51
what can oxides of nitrogen also produce
photochemical smog
48 of 51
how is photochemical smog
air pollution caused by sunlight acting on oxides of nitrogen
49 of 51
how does carbon monoxide kill people
limits the amount of oxygen the blood can carry
50 of 51
what does a catalytic converter do
reduce the amount of carbon monoxide and nitrogen oxides a car produces
51 of 51

Other cards in this set

Card 2

Front

What is a polymer

Back

a long chain of molecules

Card 3

Front

what are addition polymers made up from

Back

Preview of the front of card 3

Card 4

Front

the monomers that make up addition polymers have what type of bonds

Back

Preview of the front of card 4

Card 5

Front

what are molecules no double bond between carbon atoms are

Back

Preview of the front of card 5
View more cards

Comments

No comments have yet been made

Similar Chemistry resources:

See all Chemistry resources »See all Nanoscience resources »