Please check the examination details below before entering your candidate information
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Time 1 hour 10 minutes
Paper
reference 1SC0/2CH
Combined Science 2025
Practice Paper
PAPER 5 (Higher Tier)
You must have: Total Marks
Calculator, ruler
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.
• You must showmayall NOT
Any diagrams be accurately drawn, unless otherwise indicated.
• at the end of your solution.
your working out with your answer clearly identified
Information
• The total mark for this paper is 60
• The marks for each question are shown in brackets
• In questions marked with an asterisk (*), marks will be awarded for your ability
– use this as a guide as to how much time to spend on each question.
to structure your answer logically, showing how the points that you make are
•
related or follow on from each other where appropriate.
There is a periodic table on the back cover of the paper.
Advice
• Read each question carefully before you start to answer it.
• Checkanswer
Try to every question.
• your answers if you have time at the end. Turn over
, Do not write
1 outside the
box
01) A student investigates the reaction of different metals with dilute hydrochloric acid.
The setup used is shown in Figure 1. The reaction produces hydrogen gas.
(a) Fill in the blank:
The gas produced in this reaction can be identified using a __________ test,
which results in a squeaky pop.
[1 mark]
(b) Multiple-choice question:
Which of the following factors would increase the rate of reaction?
A: Using larger pieces of the metal
B: Using powdered metal
C: Decreasing the temperature
D: Using a weaker acid
Answer: __________
[2 marks]
Edexcel Combined science 5H 2025 Practice Question
Paper
, Do not write
2 outside the
box
(c) The following table shows results for the reaction of 1.00 g of magnesium
with dilute hydrochloric acid at 25°C:
Time (s) Volume of Hydrogen Gas (cm³)
0 0
10 24
20 38
30 45
40 50
Calculate the average rate of reaction (in cm³/s) over the first 20 seconds.
[3 marks]
(d) Explain why the reaction slows down over time. Include references to collision
theory in your answer.
[3 marks]
Edexcel Combined science 5H 2025 Practice Question
Paper
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Time 1 hour 10 minutes
Paper
reference 1SC0/2CH
Combined Science 2025
Practice Paper
PAPER 5 (Higher Tier)
You must have: Total Marks
Calculator, ruler
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.
• You must showmayall NOT
Any diagrams be accurately drawn, unless otherwise indicated.
• at the end of your solution.
your working out with your answer clearly identified
Information
• The total mark for this paper is 60
• The marks for each question are shown in brackets
• In questions marked with an asterisk (*), marks will be awarded for your ability
– use this as a guide as to how much time to spend on each question.
to structure your answer logically, showing how the points that you make are
•
related or follow on from each other where appropriate.
There is a periodic table on the back cover of the paper.
Advice
• Read each question carefully before you start to answer it.
• Checkanswer
Try to every question.
• your answers if you have time at the end. Turn over
, Do not write
1 outside the
box
01) A student investigates the reaction of different metals with dilute hydrochloric acid.
The setup used is shown in Figure 1. The reaction produces hydrogen gas.
(a) Fill in the blank:
The gas produced in this reaction can be identified using a __________ test,
which results in a squeaky pop.
[1 mark]
(b) Multiple-choice question:
Which of the following factors would increase the rate of reaction?
A: Using larger pieces of the metal
B: Using powdered metal
C: Decreasing the temperature
D: Using a weaker acid
Answer: __________
[2 marks]
Edexcel Combined science 5H 2025 Practice Question
Paper
, Do not write
2 outside the
box
(c) The following table shows results for the reaction of 1.00 g of magnesium
with dilute hydrochloric acid at 25°C:
Time (s) Volume of Hydrogen Gas (cm³)
0 0
10 24
20 38
30 45
40 50
Calculate the average rate of reaction (in cm³/s) over the first 20 seconds.
[3 marks]
(d) Explain why the reaction slows down over time. Include references to collision
theory in your answer.
[3 marks]
Edexcel Combined science 5H 2025 Practice Question
Paper
