Candidate surname Other names
Centre Number Candidate Number
Pearson Edexcel Level 1/Level 2 GCSE (9–1)
Monday 19 May 2025
Morning (Time: 1 hour 45
minutes)
Paper
referenc
e
1CH0/1F
Chemistry
🟐 🟐
PAPER 1
Foundation Tier
You must have: Total Marks
Calculator, ruler, Periodic Table (enclosed)
Pearson Edexcel Level 1/Level 2 GCSE (9–1) Chemistry PAPER 1 Foundation Tier QP MAY 2025
Instructions
• name, centre number and candidate number.
• Use black ink or ball-point
Fill in the boxes at the top of this page with your
pen.
• Answer
• Answer all
the questions in the spaces
provided – there may be more space
questions.
• than you need.
Calculators may be
• Any diagrams may NOT be accurately drawn, unless
used.
• You must show all your working out with your answer clearly identified at the
otherwise indicated.
end of your
solution.
Information
• – use this as a guide as to how much time to spend on each question.
• The total mark for this paper
The marks for each question are shown in brackets
• isInyour100.
questions marked with an asterisk (*), marks will be awarded for
ability to structure your answer logically, showing how the points
that you make are related or follow on from each other where
appropriate.
Advice
• Read each question carefully before you start to answer it.
• Try to answer every
• Check your answers if you have time at the end.
question. Turn over
P75506RA
©2025 Pearson Education Ltd.
Y:1/1/1/1/1/1/1/1/1/1/1/1/1
, Answer ALL questions. Write your answers in the spaces provided.
Some questions must be answered with a cross in a box . If you
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change your mind about an answer, put a line through the box and
then mark your new answer with a cross .
1 A student investigates the reaction that occurs when zinc
carbonate is heated. Figure 1 shows the apparatus the student
uses.
G
limewater
zin
c
carbona
te
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hea
t
Figure
1
(a) What is the name of the piece of apparatus labelled G in Figure
1? (1)
A testing tube
B heating tube
C delivery tube
D boiling tube
(b) State what apparatus should be used to heat the zinc carbonate (1)
in Figure 1.
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............................................................................................................................
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, (c) The word equation for the reaction that occurs when zinc
carbonate is heated is zinc carbonate zinc
oxide + carbon dioxide
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The carbon dioxide bubbles through the limewater.
State what is seen when carbon dioxide bubbles through the limewater.
(1)
............................................................................................................................... ............................................................................................................................... ......................
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(d) Another student investigates the change in mass that takes
place when zinc carbonate is heated.
(i) Figure 2 shows the results the student records at the start of the investigation.
mass of empty test tube 14.62 g
mass of test tube + zinc carbonate 17.83 g
Figure 2
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Using the results in Figure 2, calculate the mass of zinc carbonate
in the test tube.
(1)
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mass of zinc carbonate =........................................g
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(ii) The student then
• heats the test tube containing the zinc carbonate for five minutes
• places the hot test tube on a bench mat to cool
• finds the mass of the test tube and contents.
Describe what the student should do next to make sure that all
the zinc carbonate has reacted completely.
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(2)
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(Total for Question 1 = 6 marks)
3
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■ over
, 2 Chemical cells and fuel cells produce a voltage.
(a) A student sets up a chemical cell by placing two different
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metal electrodes, magnesium and iron, into a salt solution.
Figure 3 shows an incomplete diagram of the chemical cell used by the student.
.......................................................................
.......................................................................
.......................................................................
Figure
3
(i) Complete Figure 3 by adding a suitable piece of apparatus to
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show that a voltage is produced.
(1)
(ii) Use words from the box to complete labelling of Figure 3.
electrolyte magnesium salt solution
carbon rod distilled water iron
(2)
(iii) Describe what happens to the cell's voltage over a long
period of time. (2)
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............................................................................................................................... ............................................................................................................................... ......................
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(b) One type of fuel cell is the hydrogen-oxygen
fuel cell. Hydrogen-oxygen fuel cells
produce water only.
Write the word equation for the reaction.
(2)
......... ... ............. ......................... ... .......... ... ............. ........ + ............ ... ............. ............. ... .......... ... ............. ............. ... . .......................................................................................
(Total for Question 2 = 7 marks)
4
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