This is a detailed chemistry workbook covering all topics and has well labelled diagrams to guide you every step of the way. It has practice questions at the the end of every topic and where you are stuck you can go back and refer. It is a good comprehensive workbook and has used very simple langua...
, How to Use This Book
For further learner support, alongside the Student’s Book, the Theory Workbook offers a range of exercises to reinforce and
SH
consolidate key terms and concepts learnt from each chapter.
This Theory Workbook is part of the Marshall Cavendish Education suite of resources that will support you as you follow the
Cambridge IGCSETM Chemistry (0620/0971) syllabuses and prepare for your examinations.
E N DI
Formative Exercises
1
CHAPTER
These exercises are meant to evaluate how well you are learning
States of Matter
PL IO N
each section in a chapter.
The questions in the exercises are set using a variety of formats,
M T VE
States of Matter
which include word searches, crosswords, fill-in-the-blanks, Exercise 1A
Kinetic Particle Theory
completing sentences, matching and labelling. They are intended 1 Fill in the blanks in the sentences given. Find and draw a
circle around the answers in the puzzle.
X L R D R P R S I L U N R
Z C P A E F U L A O K P M
to help build your subject literacy and boost your confidence in (a) Gases have a low . V Q B Y N N J E K W N T C
I H T Z Y D S Z S M S W Y
using English to understand and respond to science questions. For (b) In a solid, the particles are
together. B T E F T D O I C L O S E
R I N A H G P M T V L B I
example, word searches can help to increase your familiarity with
SA C CA
key words, and reinforce and improve spelling of those words.
(c) We can
particles are far
(d) The particles of gases have high
(e) In a
(f) In a
gases easily as the
.
, the particles are close
together but can move freely.
.
, the particles are held in fixed
A
T
E
J
U
M
R
E
X
P
A
Z
D
E
E
R
G
Y
T
S
G
S
T
H
C
O
R
U
O
U
T
O
A
T
L
A
M
A
S
L
P
J
A
Q
I
P
A
J
R
M
A
Q
Q
R
R
O
P
H
U
E
T
O
Z
Y
N
I
S
R
V
S
I
D
D
S
M W
I
B
P
X
P
Q
N
R
L
O
Q
G
S
G
D
positions and are arranged in a
Chapter 7
arrangement.
(g) In a solid, the particles are not freely. They about their fixed positions.
Exercise 7F Exam-style Questions
Supplement content is clearly (h) The particles of gases move in directions.
L
1 2 Draw lines to match the particle model to the state of matter.
A Figure 7.4 shows a set-up used to electrolyse molten lithium bromide.
marked for those studying (a) (b) (c)
the extended syllabus.
ED L
molten lithium bromide
A
Figure 7.4 Liquid Solid Gas
U
(a) Name the ions present in molten lithium bromide.
[2] States of Matter 1
SH
(b) Predict the products formed at the cathode and anode.
Cathode: [1]
Chapter 9
Anode: [1]
2 A student investigated the reaction of calcium carbonate with an excess dilute hydrochloric acid by measuring the volume
(c) Write a symbol equation, including state symbols, to represent the overall reaction that occurs when molten lithium
of carbon dioxide produced at 10 second intervals. bromide is electrolysed.
CaCO3 + 2HCl CaCl2 + CO2 + H2O [2]
The results are shown on the graph. (d) The electrodes are made of graphite. Suggest why.
60
R
S
50 [1]
R
40 (e) Identify the products obtained at the anode and the cathode if the electrolyte is changed to dilute aqueous lithium
Volume of bromide.
carbon dioxide 30 Q
gas / cm3
A
20
[2]
10
P
0
0 10 20 30 40 50 60 70 80 90
Time / s
M
Figure 9.7
(a) How long did it take from the start of the experiment to collect 30 cm3 of carbon dioxide?
s [1]
(b) At which point on the graph, P, Q, R or S, was the rate of reaction fastest?
Use the graph to explain your answer. Electrochemistry 67
[2]
(c) When 0.225 g of calcium carbonate was used, 54.0 cm3 of carbon dioxide was formed. Determine the mass of calcium
carbonate needed to form 216 cm3 of carbon dioxide.
Exam-style Questions
Each chapter includes an exercise consisting of exam-style
mass of calcium carbonate = g [1]
questions that are written by the author and/or taken from
(d) What effect will the following have on the rate of this reaction?
• Increasing the temperature of the reaction mixture. All other conditions are kept the same. Cambridge IGCSE past papers.
• Using larger pieces of calcium carbonate. All other conditions are kept the same.
The questions serve as a summative assessment to evaluate what
[Cambridge IGCSE Chemistry (0620) Paper 32 Q3a, Oct/Nov 2019]
[2]
you have learnt. They also help you to be familiar with the format
88 Rate of Reaction
of the questions in the exam.
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