EV
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ED
20
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Ex
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M AY AS MAY JUNE 2023
H
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EDExCEL AS AND A LEVEL
CH 20 A L EV
IS
IO
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20
2 3F
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,Mark Scheme (Results)
Summer 2023
Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 03: General and Practical
Principles in Chemistry
, Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning
company. We provide a wide range of qualifications including academic,
vocational, occupational and specific programmes for employers. For further
information visit our qualifications websites at www.edexcel.com or
www.btec.co.uk for our BTEC qualifications.
Alternatively, you can get in touch with us using the details on our contact us page
at www.edexcel.com/contactus.
If you have any subject specific questions about this specification that require the
help of a subject specialist, you can speak directly to the subject team at Pearson.
Their contact details can be found on this link: www.edexcel.com/teachingservices.
You can also use our online Ask the Expert service at www.edexcel.com/ask. You
will need an Edexcel username and password to access this service.
Pearson: helping people progress, everywhere
Our aim is to help everyone progress in their lives through education. We believe
in every kind of learning, for all kinds of people, wherever they are in the world.
We’ve been involved in education for over 150 years, and by working across 70
countries, in 100 languages, we have built an international reputation for our
commitment to high standards and raising achievement through innovation in
education. Find out more about how we can help you and your students at:
www.pearson.com/uk
Summer 2023
Question Paper Log Number P71914A
Publications Code 9CH0_03_2306_MS
All the material in this publication is copyright
© Pearson Education Ltd 2023
, General Marking Guidance
• All candidates must receive the same treatment. Examiners must mark the first candidate in
exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates must be rewarded for what they have
shown they can do rather than penalised for omissions.
• Examiners should mark according to the mark scheme not according to their perception of where
the grade boundaries may lie.
• There is no ceiling on achievement. All marks on the mark scheme should be used appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners should always award
full marks if deserved, i.e. if the answer matches the mark scheme. Examiners should also be
prepared to award zero marks if the candidate’s response is not worthy of credit according to the
mark scheme.
• Where some judgement is required, mark schemes will provide the principles by which marks
will be awarded and exemplification may be limited.
• When examiners are in doubt regarding the application of the mark scheme to a candidate’s
response, the team leader must be consulted.
• Crossed out work should be marked UNLESS the candidate has replaced it with an alternative
response.
• Mark schemes will indicate within the table where, and which strands of QWC, are being
assessed. The strands are as follows:
i) ensure that text is legible and that spelling, punctuation and grammar are accurate so that
meaning is clear
ii) select and use a form and style of writing appropriate to purpose and to complex subject
matter
iii) organise information clearly and coherently, using specialist vocabulary when appropriate
IS
STRIP OFF
IOTHIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGE STRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP
N
OFF THIS PAGESTRIP OFF THIS PAGE STRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGE STRIP OFF THIS PAGESTRIP OFF
ED
20
THIS PAGESTRIP OFF
23 THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS
PAGE STRIP OFF THIS
F PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGESTRIP OFF THIS PAGE
Ex
O
R
CE
H M L
EL
PF
U
L
M AY AS
R AR JU AN
EV
IS KS NE D
IO
N CH 20 A L
20
23 E M 23 E V
FO
R E EL
H
EL
PF
U
L
ED R
EV
E ISI
O
N
xC
20
M EL 23
FO
R
MARKSCHEME
M AY AS MAY JUNE 2023
H
AR JU AN EL
PF
U
KS NE D
L
R
EDExCEL AS AND A LEVEL
CH 20 A L EV
IS
IO
EM 23 EV
E EL N
20
2 3F
O
R
H
,Mark Scheme (Results)
Summer 2023
Pearson Edexcel GCE
In Chemistry (9CH0)
Paper 03: General and Practical
Principles in Chemistry
, Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications come from Pearson, the world’s leading learning
company. We provide a wide range of qualifications including academic,
vocational, occupational and specific programmes for employers. For further
information visit our qualifications websites at www.edexcel.com or
www.btec.co.uk for our BTEC qualifications.
Alternatively, you can get in touch with us using the details on our contact us page
at www.edexcel.com/contactus.
If you have any subject specific questions about this specification that require the
help of a subject specialist, you can speak directly to the subject team at Pearson.
Their contact details can be found on this link: www.edexcel.com/teachingservices.
You can also use our online Ask the Expert service at www.edexcel.com/ask. You
will need an Edexcel username and password to access this service.
Pearson: helping people progress, everywhere
Our aim is to help everyone progress in their lives through education. We believe
in every kind of learning, for all kinds of people, wherever they are in the world.
We’ve been involved in education for over 150 years, and by working across 70
countries, in 100 languages, we have built an international reputation for our
commitment to high standards and raising achievement through innovation in
education. Find out more about how we can help you and your students at:
www.pearson.com/uk
Summer 2023
Question Paper Log Number P71914A
Publications Code 9CH0_03_2306_MS
All the material in this publication is copyright
© Pearson Education Ltd 2023
, General Marking Guidance
• All candidates must receive the same treatment. Examiners must mark the first candidate in
exactly the same way as they mark the last.
• Mark schemes should be applied positively. Candidates must be rewarded for what they have
shown they can do rather than penalised for omissions.
• Examiners should mark according to the mark scheme not according to their perception of where
the grade boundaries may lie.
• There is no ceiling on achievement. All marks on the mark scheme should be used appropriately.
• All the marks on the mark scheme are designed to be awarded. Examiners should always award
full marks if deserved, i.e. if the answer matches the mark scheme. Examiners should also be
prepared to award zero marks if the candidate’s response is not worthy of credit according to the
mark scheme.
• Where some judgement is required, mark schemes will provide the principles by which marks
will be awarded and exemplification may be limited.
• When examiners are in doubt regarding the application of the mark scheme to a candidate’s
response, the team leader must be consulted.
• Crossed out work should be marked UNLESS the candidate has replaced it with an alternative
response.
• Mark schemes will indicate within the table where, and which strands of QWC, are being
assessed. The strands are as follows:
i) ensure that text is legible and that spelling, punctuation and grammar are accurate so that
meaning is clear
ii) select and use a form and style of writing appropriate to purpose and to complex subject
matter
iii) organise information clearly and coherently, using specialist vocabulary when appropriate
