Candidate signature
I declare this is my own work.
H
GCSE
COMBINED SCIENCE: TRILOGY
Higher Tier
Chemistry Paper 2H
Tuesday 13 June 2023 Morning Time allowed: 1 hour 15 minutes
Materials
For Examiner’s Use
For this paper you must have:
• a ruler Question Mark
• a scientific calculator
1
• the periodic table (enclosed).
2
Instructions 3
• Use black ink or black ball-point pen. 4
• Pencil should only be used for drawing.
5
• Fill in the boxes at the top of this page.
• Answer all questions in the spaces provided. 6
• If you need extra space for your answer(s), use the lined pages at the end of
TOTAL
this book. Write the question number against your answer(s).
• Do all rough work in this book. Cross through any work you do not want to be
marked.
• In all calculations, show clearly how you work out your answer.
Information
• The maximum mark for this paper is 70.
• The marks for questions are shown in brackets.
• You are expected to use a calculator where appropriate.
• You are reminded of the need for good English and clear presentation in your answers.
*JUN238464C2H01*
IB/M/Jun23/E7 8464/C/2H
, 2
Do not write
outside the
There are no questions printed on this page box
DO NOT WRITE ON THIS PAGE
ANSWER IN THE SPACES PROVIDED
*02*
IB/M/Jun23/8464/C/2H
, 3
Do not write
outside the
0 1 The combustion of fuels is a source of atmospheric pollutants. box
0 1 . 1 Methane is a fuel.
Balance the equation for the combustion of methane.
[1 mark]
CH4 + O2 → CO2 + H2O
0 1 . 2 Many fuels are mixtures.
Petrol and diesel are mixtures of hydrocarbons.
Table 1 shows properties of petrol and of diesel.
Table 1
Petrol Diesel
Range of number of carbon atoms in
4 to 12 12 to 20
a hydrocarbon molecule
Range of boiling points in °C 40 to 205 250 to 350
Compare the properties of petrol and diesel.
Use Table 1.
[2 marks]
Turn over ►
*03*
IB/M/Jun23/8464/C/2H
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller Freemann. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.77. You're not tied to anything after your purchase.
