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AQA · A Level

AQA A Level Chemistry

Chemistry for AQA A Level (syllabus 7405) — what the qualification covers, and the study material Marlbridge publishes for it.

Syllabus
7405
Board
AQA
Qualification
A Level

At a glance

Qualification
AQA A Level Chemistry
Spec code
7405
Does Marlbridge teach it?
Yes
Are resources available?
Yes — 6 published
Is enrolment open?
Enquire to join — no online enrolment yet
Where was this verified?
2026-08-21, official AQA specification

Compiled and maintained by the Marlbridge Academic Team, checked against the official AQA specification on 2026-08-21.

Spotted something wrong on this page? Report an error — see the corrections policy.

The qualification

AQA A-level Chemistry (7405)

AQA A-level Chemistry develops learners' understanding of chemical concepts, principles and skills in physical, inorganic and organic chemistry. — AQA, official syllabus page

For teaching from September 2015. Three broad strands (Physical, Inorganic, Organic chemistry) with AS-shared and A-level-only sections.

Specifications change between examination series. Always confirm the current syllabus and assessment structure on the AQA syllabus page for your examination year.

Assessment structure

Linear qualification

Assessment components for AQA Chemistry 7405
Component Duration Marks Weighting Type
7405/1: Paper 1 2h 105 35% Written exam
7405/2: Paper 2 2h 105 35% Written exam
7405/3: Paper 3 2h 90 30% Written exam

Source: official AQA specification, verified 2026-08-28. Directly confirmed against the official AQA specification-at-a-glance page: linear, not tiered, three written papers. Paper 1 (relevant physical chemistry sections 3.1.1-3.1.4/3.1.6-3.1.8/3.1.10-3.1.12, plus inorganic chemistry section 3.2, plus relevant practical skills): 2h/105marks/35% of A-level, short and long answer questions. Paper 2 (relevant physical chemistry sections 3.1.2-3.1.6/3.1.9, plus organic chemistry section 3.3, plus relevant practical skills): 2h/105marks/35%, short and long answer questions. Paper 3 (any content, any practical skills): 2h/90marks/30% -- 40 marks practical techniques and data analysis, 20 marks questions testing across the specification, 30 marks multiple choice. Total 300 marks. First teaching September 2015, first A-level assessment June 2017.

Assessment FAQs

How is AQA Chemistry (7405) assessed?

AQA Chemistry (7405) is assessed through: 7405/1 (Paper 1) — 2h, 105 marks, 35% of the qualification; 7405/2 (Paper 2) — 2h, 105 marks, 35% of the qualification; 7405/3 (Paper 3) — 2h, 90 marks, 30% of the qualification. It is a linear qualification. Source: official AQA specification, verified 2026-08-28.

The subject

Chemistry teaching and study resources, organised by level and topic.

All Chemistry at Marlbridge

Syllabus topics

The 33 topics below are the official subject content of AQA A-level Chemistry (7405), for the For teaching from September 2015 examination series, reproduced from the AQA syllabus document.

A topic listed here is part of the syllabus. It does not mean Marlbridge has published material for it — topics with resources are marked. Marlbridge currently has resources for 2 of 33 topics.

AS Level

Topics 1–22. Studied in the first year, and assessed on the AS papers.

  1. AS 1 Atomic structure

    3 Marlbridge resources

    Fundamental particles · Mass number and isotopes · Electron configuration

  2. AS 2 Amount of substance

    3 Marlbridge resources

    Relative atomic mass and relative molecular mass · The mole and the Avogadro constant · The ideal gas equation · Empirical and molecular formula

  3. AS 3 Bonding

    Syllabus topic · no resource yet

  4. AS 4 Energetics

    Syllabus topic · no resource yet

  5. AS 5 Kinetics

    Syllabus topic · no resource yet

  6. AS 6 Chemical equilibria, Le Chatelier's principle and Kc

    Syllabus topic · no resource yet

  7. AS 7 Oxidation, reduction and redox equations

    Syllabus topic · no resource yet

  8. AS 13 Periodicity

    Syllabus topic · no resource yet

  9. AS 14 Group 2, the alkaline earth metals

    Syllabus topic · no resource yet

  10. AS 15 Group 7(17), the halogens

    Syllabus topic · no resource yet

  11. AS 19 Introduction to organic chemistry

    Syllabus topic · no resource yet

  12. AS 20 Alkanes

    Syllabus topic · no resource yet

  13. AS 21 Halogenoalkanes

    Syllabus topic · no resource yet

  14. AS 22 Alkenes

    Syllabus topic · no resource yet

  15. AS 23 Organic analysis

    Syllabus topic · no resource yet

A Level

Topics 23–37. Studied in addition to the AS content for the full A Level.

  1. A 8 Thermodynamics

    Syllabus topic · no resource yet

  2. A 9 Rate equations

    Syllabus topic · no resource yet

  3. A 10 Equilibrium constant Kp for homogeneous systems

    Syllabus topic · no resource yet

  4. A 11 Electrode potentials and electrochemical cells

    Syllabus topic · no resource yet

  5. A 12 Acids and bases

    Syllabus topic · no resource yet

  6. A 16 Properties of Period 3 elements and their oxides

    Syllabus topic · no resource yet

  7. A 17 Transition metals

    Syllabus topic · no resource yet

  8. A 18 Reactions of ions in aqueous solution

    Syllabus topic · no resource yet

  9. A 24 Optical isomerism

    Syllabus topic · no resource yet

  10. A 25 Aldehydes and ketones

    Syllabus topic · no resource yet

  11. A 26 Carboxylic acids and derivatives

    Syllabus topic · no resource yet

  12. A 27 Aromatic chemistry

    Syllabus topic · no resource yet

  13. A 28 Amines

    Syllabus topic · no resource yet

  14. A 29 Polymers

    Syllabus topic · no resource yet

  15. A 30 Amino acids, proteins and DNA

    Syllabus topic · no resource yet

  16. A 31 Organic synthesis

    Syllabus topic · no resource yet

  17. A 32 Nuclear magnetic resonance spectroscopy

    Syllabus topic · no resource yet

  18. A 33 Chromatography

    Syllabus topic · no resource yet

Source: AQA — official A-level Chemistry (7405) specification PDF — For teaching from September 2015 series. Verified 2026-08-21. Always check the current syllabus for your examination year.

Study resources

Revision material

Exam preparation

Chemistry at other qualifications

These are separate qualifications with different syllabuses and assessments — not different names for the same course. Check which one your school enters you for.

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