2024 Pearson Edexcel GCSE In Combined Science Chemistry (1SC0) Paper 1CF question paper and marking scheme (merged)

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Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Friday 17 May 2024
Morning (Time: 1 hour 10 minutes)
Paper
reference 1SC0/1CF
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Combined Science
PAPER 2

Foundation Tier
You must have: Total Marks
Calculator, ruler, Periodic Table (enclosed)


Instructions

•• Use black ink or ball-point pen.
Fill in the boxes at the top of this page with your name,

•• Answer
centre number and candidate number.
all questions.
Answer the questions in the spaces provided
– there may be more space than you need.
•
•
Calculators may be used.
Any diagrams may NOT be accurately drawn, unless otherwise indicated.
• You must show all your working out with your answer clearly identified at the
end of your solution.
Information
•• The total mark for this paper is 60.
The marks for each question are shown in brackets

• Inanswer
– use this as a guide as to how much time to spend on each question.
questions marked with an asterisk (*), marks will be awarded for your ability to structure your
logically, showing how the points that you make are related orfollow on from each other
where appropriate.
Advice
• Read each question carefully before you start to answer it.
•• Try to answer every question.
Check your answers if you have time at the end.
Turn over


Pearson Edexcel GCSE
In Combined Science Chemistry(1SC0)Paper 1CF

, Answer ALL questions. Write your answers in the spaces provided.

Some questions must be answered with a cross in a box . If you change your mind about an




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answer, put a line through the box and then mark your new answer with a cross .

1 Figure 1 shows a test tube being heated in a beaker of water.




wax




heat



Figure 1




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The test tube contains solid wax.

As the test tube was heated, the solid wax changed to liquid wax.After

heating, the wax was allowed to cool to room temperature.

(a) Figure 2 shows the arrangement of particles in liquid wax.




Figure 2
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Draw the arrangement of particles in solid wax in the box in Figure 3.
(1)




Figure 3




2

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, (b) When the wax cools, it changes from a liquid back to a solid.This
change is a physical change.
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(i) What name is given to the change of a liquid to a solid?
(1)
A condensing B

evaporating C

freezing

D melting


(ii) Explain why the change from a liquid to a solid is a physical change ratherthan a
chemical change.
(2)

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. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. . . .. .. .. .. .. .. .. . .. .. .



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(c) Another physical change is when a liquid changes into a gas.

(i) Which row shows the movement and arrangement of the particles in a gas?
(1)

movement of particles arrangement of particles

A slow regular

B slow random

C fast regular

fast random
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D



(ii) Suggest why the wax did not change into a gas when the test tube washeated
in the beaker of water.
(1)

. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. . . .. .. .. .. .. .. .. . .. .. .



. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. ... . .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. . .. .. .. .. .. .. .. .. .. .. .. .. .. .. . .. . . .. .. .. .. .. .. .. . .. .. .



(Total for Question 1 = 6 marks)


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