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Page 1

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CCEA
Chemistry
Higher Tier
Revision Yr.
11
Hazar
d Symbol
s

OXI
D I
ZING

May
cat
ch f
ir
e i
n ai
r.
E.
G .
Pot
assi
um
Maganat
e (
V I
I)
,
Bleachi
ng
Powder
.

CORROSI
VE

At
tack
and
dest
roy
li…

Page 2

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Har
mful
=
Insi
de
Body.


I
rr
it
ant
=
O ut
side
body.








St
ates
of
Mat
ter


Matt
e r
i
s somethi
ng
that

occupi
es space and
has mass.
The t
hree st
ates
of
ma tt
er
are
sol
ids,
l
iqui
ds and…

Page 3

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Fi
xed Takes
volume
of
cont
ainer





Vol
ume Fi
xed
Fl
ow Does not
f
low,
r
igi
d Fl
ow s Fl
ows easi
l
y
Compr
essi
bil
i
ty Cannot
be Can be
co mpr
essed Can
be compr
essed
compressed sl
i
g ht
ly.…

Page 4

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Melt
ing
P oi
nt
is
the
temper
atur
e
at
which
a sol
id
changes
to
a
l
iqui
d.

Boi
li
ng Poi
nt
is
the
t
emp er
ature
at
w hi
ch a
li
qui
d
changes
to
a gas.

Evaprat
ion
is
the
change of…

Page 5

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Condensi
ng

Wh en a
gas i
s cooled,
the
part
icl
es l
ose heat
a nd
ha ve
l
ess energy and
so
have l
e ss

move ment.
The
parti
cl
e s
come
cl
oser t
oge t
her as
the gas
cool
s, t
he…

Page 6

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Heat
ing
and
C ool
ing
graphs

1,
when a
su bst
ance i
s melt
ing
or
boi
li
ng,
a l
l
the
heat
en er
gy
suppl
ied
is
used
for
br
ea ki
ng
bonds
rather
than
rai
sing
the
t
emp er
a t
ure,…

Page 7

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Ener
gy

Mot
ion

Arr
angement


Proxi
mit
y

At
tr
act
ion



PRESSURE,
VO LUME
AND
TEMPERATUR E
CALCULATI
O NS

The
vol
ume
of
a gas
depends
on
it
s t
emper
atur
e and
pressur
e.


An
incr
ease i
n t
he t
emp er
a…

Page 8

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V2=0.
25
x 400
/
5 =
20

V
= 20cm3

Uni
ts




Usef
ul
ter
ms

El
eme nts
canno t
be
broken
down i
nto
an yt
hing
simpl
er by
chemi
ca l
mean s.
Are
made
up
of
onl
y one t
ype of
atom.


At…

Page 9

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Mass number
i
s t
he number of

pr
otons
and
neutrons
in
the
nucl
eus.


Neut
rons
= mass
number
­
at
omic
numb er
.

I
sostopes
are at
oms of
t
he
same el
eme nt,
whi
ch
have t
he
same at
omo c number
but…

Page 10

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`
' 5


`'


3

`
' 6

`
''




2

`
' 7

`
''
'



1

Val
en ci
es al
low f
ormulae
to be
wri
tt
en even when i
ons are
not
i
nvolved.
I
t
b ecomes a
simple
matt
er of
swapping
the…

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