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Grade Content Book Ref
C
4
a:
A
ci
ds
&
B
as
es
1 D, C Universal indicator
can
be
used
to
est
imat
e t
he
pH of
a
sol
uti
on
P 112 ­ The pH
When an acid (
R ED)
is
n eut
ral
ised…

Page 2

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ea
cti
ng
M
as
se
s
6 D,C The
n umb er of
el
e me nt
s /
at
oms i
n
a sub stan c e
is
show n
by a f
ormu l
a ,
eg
. P 116 ­
CuSO 4=

1C u (
cop…

Page 3

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p
yi
el
d
9 D,C Fer
ti
li
sersa
re solids and
must
bed
i
ssol
vedi
nw
at
er
tob
et
akeni

nby
root
s
i
nsol
uti
on.
Fer
ti
li
ser
s P 120 ­
i
ncrease
crop
yiel
d .
Nutrients and
plant growth

P…

Page 4

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be
r
pr
oc
es
s
&
Co
st
s
1 D,C Ammonia
is
used
to
make fertilizer.
The
use of
ammo ni
a t
o pr
oduce
fer
ti
li
zer
has
made
it
possi
ble P 123
t
o dr
amat
ical
ly
incr
ease
the qu an…

Page 5

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nt
s
1 D,C Many
det
ergent
s ar
e made
by
the
neutralization
of
aci
ds
w i
th
alkal
i
s P 127, 129
8
Usi
ng low temperature w ashes
saves
energy.
C er
tai
n cl
othes
can be
w ashed
usi
ng l
ow t…

Page 6

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less automation
possi
ble
research
and
testing
may
take
many
year
s
r
aw mat
eri
als
li
kel
y t
o be
rar
e and/
or
invol
ve
expensive
ext
ract
i
o n
fr
om
plant
s
l
egi
sl
ati
ve
(maki
ng
new laws)
demands

P…

Page 7

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B ­ A*


The
str u ctur
e of
d i
amo nd and grap hi
te
aff
ects
thei
r
properti
e s:
Diamond Graphite
Very hard ­ b ecau se i
td
o es note
x isti
n is soft ­ becau se ofw
e ak i
nter…

Page 8

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lead
compounds
fr
om
lead
pipes
pesticide
fr
om spr
ay i
n g n ear
t
o wat
e r
r
esourc es
.
3 D,C Wat
er
pur
if
icat
ion i
ncl
udes
1)
filtration,
2)
sedimentation a nd
3)chlorination
P 140 ­ Water
9 purification


P…

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