2024 Pearson Edexcel Level 1/Level 2 GCSE Combined
Science (Chemistry) 1SC0/2CH PAPER 2. With Marking
Scheme Merged
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Tuesday 11 June 2024
reference 1SC0/2CH
Morning (Time: 1 hour 10 minutes) Paper
Combined Science
PAPER 5
Higher 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,
• centre number and candidate number.
• Answer 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.
• The total mark for this paper is 60.
• The marks for each question are shown in brackets
• – use this as a guide as to how much time to spend on each question.
In questions marked with an asterisk (*), marks will be awarded for your ability to
structure your answer logically, showing how the points that you make are related
Information
or follow 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
P74445A
©2024 Pearson Education Ltd.
*P74445A0120*
F:1/1/1/1/1/1/1/
, 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
DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 A student investigates the reaction between marble chips
and dilute hydrochloric acid.
The student measures the total volume of carbon dioxide gas produced each
minute, for 10 minutes.
(a) Figure 1 shows part of the apparatus used in the experiment.
Complete Figure 1 by drawing and labelling apparatus that could be
used to collect and measure the volume of the carbon dioxide gas.
(2)
DO NOT WRITE IN THIS AREA
conical flask
dilute
hydrochloric acid
marble chips
Figure 1
DO NOT WRITE IN THIS AREA
2
*P74445A0220*
, (b) Figure 2 shows a graph of the results of the experiment.
A tangent has been drawn on the curve at a time of 3.5 minutes.
DO NOT WRITE IN THIS AREA
volume of 70
carbon dioxide
in cm3 60
50
40
30
20
10
0
0 2 4 6 8 10
DO NOT WRITE IN THIS AREA
time in minutes
Figure 2
(i) State the total volume of carbon dioxide produced in the first 3.5 minutes.
(1)
volume = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm3
(ii) Using the tangent, calculate the rate of reaction at 3.5
minutes in cm3 per minute.
rate of reaction = change in gas volume
change in time
(3)
....................................................................................................................................................................................................................................................................................
DO NOT WRITE IN THIS AREA
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
rate = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm3 per minute
3
*P74445A0320*
, (c) The student repeats the experiment using the same mass of smaller marble
chips. All other conditions remain the same.
DO NOT WRITE IN THIS AREA
Explain the effect on the rate of reaction of using smaller marble chips.
(2)
......................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................................
(d) Which change would make the rate of reaction slower?
(1)
A using the same acid at a higher temperature
DO NOT WRITE IN THIS AREA
B using acid of a lower concentration
C using a larger flask
D adding a catalyst
(Total for Question 1 = 9 marks)
DO NOT WRITE IN THIS AREA
4
*P74445A0420*
Science (Chemistry) 1SC0/2CH PAPER 2. With Marking
Scheme Merged
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Tuesday 11 June 2024
reference 1SC0/2CH
Morning (Time: 1 hour 10 minutes) Paper
Combined Science
PAPER 5
Higher 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,
• centre number and candidate number.
• Answer 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.
• The total mark for this paper is 60.
• The marks for each question are shown in brackets
• – use this as a guide as to how much time to spend on each question.
In questions marked with an asterisk (*), marks will be awarded for your ability to
structure your answer logically, showing how the points that you make are related
Information
or follow 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
P74445A
©2024 Pearson Education Ltd.
*P74445A0120*
F:1/1/1/1/1/1/1/
, 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
DO NOT WRITE IN THIS AREA
answer, put a line through the box and then mark your new answer with a cross .
1 A student investigates the reaction between marble chips
and dilute hydrochloric acid.
The student measures the total volume of carbon dioxide gas produced each
minute, for 10 minutes.
(a) Figure 1 shows part of the apparatus used in the experiment.
Complete Figure 1 by drawing and labelling apparatus that could be
used to collect and measure the volume of the carbon dioxide gas.
(2)
DO NOT WRITE IN THIS AREA
conical flask
dilute
hydrochloric acid
marble chips
Figure 1
DO NOT WRITE IN THIS AREA
2
*P74445A0220*
, (b) Figure 2 shows a graph of the results of the experiment.
A tangent has been drawn on the curve at a time of 3.5 minutes.
DO NOT WRITE IN THIS AREA
volume of 70
carbon dioxide
in cm3 60
50
40
30
20
10
0
0 2 4 6 8 10
DO NOT WRITE IN THIS AREA
time in minutes
Figure 2
(i) State the total volume of carbon dioxide produced in the first 3.5 minutes.
(1)
volume = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm3
(ii) Using the tangent, calculate the rate of reaction at 3.5
minutes in cm3 per minute.
rate of reaction = change in gas volume
change in time
(3)
....................................................................................................................................................................................................................................................................................
DO NOT WRITE IN THIS AREA
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
rate = . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . cm3 per minute
3
*P74445A0320*
, (c) The student repeats the experiment using the same mass of smaller marble
chips. All other conditions remain the same.
DO NOT WRITE IN THIS AREA
Explain the effect on the rate of reaction of using smaller marble chips.
(2)
......................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................................
....................................................................................................................................................................................................................................................................................
......................................................................................................................................................................................................................................................................................
(d) Which change would make the rate of reaction slower?
(1)
A using the same acid at a higher temperature
DO NOT WRITE IN THIS AREA
B using acid of a lower concentration
C using a larger flask
D adding a catalyst
(Total for Question 1 = 9 marks)
DO NOT WRITE IN THIS AREA
4
*P74445A0420*
