Mark Scheme (Results)
Pearson Edexcel GCSE In Chemistry (1CH0)
Paper 2H MS 2023
Summer 2023
Pearson Edexcel GCSE
In Chemistry (1CH0)
Paper 2H
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. 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. Alternatively, you can get in touch with us using the details
on our contact us page at www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. 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
Publications Code 1CH0_2H_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 have been developed so that the rubrics of each mark scheme reflects the characteristics
of the skills within the AO being targeted and the requirements of the command word. So for example
the command word ‘Explain’ requires an identification of a point and then reasoning/justification of the
point.
Explain questions can be asked across all AOs. The distinction comes whether the identification is via a
judgment made to reach a conclusion, or, making a point through application of knowledge to
reason/justify the point made through application of understanding. It is the combination and linkage
of the marking points that is needed to gain full marks.
When marking questions with a ‘describe’ or ‘explain’ command word, the detailed marking guidance
below should be consulted to ensure consistency of marking.
Assessment Command Word
Objective
Strand Element Describe Explain
AO1 An answer that combines the marking An explanation that links
points to provide a logical description identification of a point with
reasoning/justification(s) as required
AO2 An answer that combines the marking An explanation that links
points to provide a logical description, identification of a point (by applying
showing application of knowledge and knowledge) with
understanding reasoning/justification (application of
understanding)
AO3 1a and An answer that combines points of
1b interpretation/evaluation to provide a
logical description
AO3 2a and An explanation that combines
2b identification via a judgment to reach
a conclusion via
justification/reasoning
AO3 3a An answer that combines the marking
points to provide a logical description
of the plan/method/experiment
AO3 3b An explanation that combines
identifying an improvement of the
experimental procedure with a linked
justification/reasoning
Pearson Edexcel GCSE In Chemistry (1CH0)
Paper 2H MS 2023
Summer 2023
Pearson Edexcel GCSE
In Chemistry (1CH0)
Paper 2H
,Edexcel and BTEC Qualifications
Edexcel and BTEC qualifications are awarded by Pearson, the UK’s largest awarding body. 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. Alternatively, you can get in touch with us using the details
on our contact us page at www.edexcel.com/contactus.
Pearson: helping people progress, everywhere
Pearson aspires to be the world’s leading learning company. 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
Publications Code 1CH0_2H_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 have been developed so that the rubrics of each mark scheme reflects the characteristics
of the skills within the AO being targeted and the requirements of the command word. So for example
the command word ‘Explain’ requires an identification of a point and then reasoning/justification of the
point.
Explain questions can be asked across all AOs. The distinction comes whether the identification is via a
judgment made to reach a conclusion, or, making a point through application of knowledge to
reason/justify the point made through application of understanding. It is the combination and linkage
of the marking points that is needed to gain full marks.
When marking questions with a ‘describe’ or ‘explain’ command word, the detailed marking guidance
below should be consulted to ensure consistency of marking.
Assessment Command Word
Objective
Strand Element Describe Explain
AO1 An answer that combines the marking An explanation that links
points to provide a logical description identification of a point with
reasoning/justification(s) as required
AO2 An answer that combines the marking An explanation that links
points to provide a logical description, identification of a point (by applying
showing application of knowledge and knowledge) with
understanding reasoning/justification (application of
understanding)
AO3 1a and An answer that combines points of
1b interpretation/evaluation to provide a
logical description
AO3 2a and An explanation that combines
2b identification via a judgment to reach
a conclusion via
justification/reasoning
AO3 3a An answer that combines the marking
points to provide a logical description
of the plan/method/experiment
AO3 3b An explanation that combines
identifying an improvement of the
experimental procedure with a linked
justification/reasoning
