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Summary Doc Scientia Physical Sciences. Chemistry, ISBN: 9781920537159 Physical Sciences
Comprehensive notes which are clear and in a neat manner.
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, Line Revisiongraph
:
Rules :
① 75 't .
rule
② Plot pencil
points in
3
IDV on x -
axis
↳
DV on Y -
axis
5
Footer include both variables
Proportionality
:
Direct = AT BT same factor
DV
= AaB =k
IDU
INVERSELY = A TBH same factor
= A d
'
1B
= K = Ax B
•
DV
directly
is proportional to the DV
inuersly Proportional
men
Straight line
line passes
•
through origin
, July Exam
questions
:
2020
.
i
Cams)
1) Table to show the relationship between Volume and
density
( ) of
gloms a mass
piece .
Vdoetunfezy volume Ccma)
"
Volume ( cm 3) Density (gloms)
I 16 16 I
2 8 16 O . 5
4 16 0.25
4
2 16 0.125
8
1 16 0.0625
16
There is proportional relationship There between
2) an inversely . is a
hyperbola
Volume and
density .
•
Graph shows the inverse
proportionality
in
I ot
density
and volume
=
¥
£
&
I
3
Volume
-
cm
, FOR M U L A WRITING :
1) Periodic table
2) Stock Notation
3) Prefixes
4) Compound ions
1 Periodic table :
valency
= Ionic bonding
sodium bromide Nat Br
-
ex ' :
= Na Br
.
Zt
Calcium chloride : Ca c,
-
= Ca ( 12
•
2 Stack notation : Transition metals
" -
Fe Br
iron ( Il) bromide :
Fe Brz .
z
+3 o
-
iron ( ill) oxide : Fe
Fez 03
•
bonding
3
PREFIXES : covalent
monoxide
dihydrogen
H2O •
Sulphur dichloride
SCI 2 .
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