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 45 minutes
Paper
reference 1CHO/2F
Chemistry 2025
Practice Paper
PAPER 2 (Foundation 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 100
• 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
,5
F
F 2025
, 2
1 . 1 Practical Setup (4 Marks)
A group of students is conducting an experiment to measure the temperature change when a
solid dissolves in water. The steps they follow are listed below but are not in the correct order:
1. Add the solid to the water and stir.
2. Measure the initial temperature of the water.
3. Pour 50 cm³ of water into a polystyrene cup.
4. Measure the final temperature of the solution after stirring.
1 . 1 . 1 Write the steps in the correct order.
(2 marks)
, 3
1 . 1 . 2 Suggest one way to reduce heat loss during this experiment to improve accuracy. (1 mark)
1 . 1 . 3 Why is a polystyrene cup used instead of a glass beaker?
(1 mark)
1 . 2 Observations and Analysis (5 Marks)
A student dissolves 5 g of ammonium chloride in 100 cm³ of water at 20°C, and the
temperature drops to 16°C.
1 . 2 . 1 Calculate the temperature change.
(1 mark)
1 . 2 . 2 . 1 Is this reaction exothermic or endothermic? Explain your answer based on energy transfer.
(2 marks)
Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Time 1 hour 45 minutes
Paper
reference 1CHO/2F
Chemistry 2025
Practice Paper
PAPER 2 (Foundation 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 100
• 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
,5
F
F 2025
, 2
1 . 1 Practical Setup (4 Marks)
A group of students is conducting an experiment to measure the temperature change when a
solid dissolves in water. The steps they follow are listed below but are not in the correct order:
1. Add the solid to the water and stir.
2. Measure the initial temperature of the water.
3. Pour 50 cm³ of water into a polystyrene cup.
4. Measure the final temperature of the solution after stirring.
1 . 1 . 1 Write the steps in the correct order.
(2 marks)
, 3
1 . 1 . 2 Suggest one way to reduce heat loss during this experiment to improve accuracy. (1 mark)
1 . 1 . 3 Why is a polystyrene cup used instead of a glass beaker?
(1 mark)
1 . 2 Observations and Analysis (5 Marks)
A student dissolves 5 g of ammonium chloride in 100 cm³ of water at 20°C, and the
temperature drops to 16°C.
1 . 2 . 1 Calculate the temperature change.
(1 mark)
1 . 2 . 2 . 1 Is this reaction exothermic or endothermic? Explain your answer based on energy transfer.
(2 marks)
