📚 AQA A Level Chemistry Specification at a Glance | AQA A Level 化学考试大纲一览
AQA A Level Chemistry (7405) is a two-year linear qualification assessed by three written papers at the end of Year 13. There is no coursework component, but practical competency is assessed through written questions and reported separately through the AQA Practical Endorsement.
AQA A Level 化学（7405）是一项两年制线性资格证书，在 Year 13 结束时通过三份笔试进行评估。课程没有作业部分，但实验能力会通过笔试题目和单独报告的 AQA 实验认证来考核。
This guide gives a concise at-a-glance overview of the specification, including content areas, assessment objectives, paper structure, practical skills and revision strategies.
本指南提供考试大纲的一览式概述，包括内容领域、评估目标、试卷结构、实验技能和复习策略。
1. Overview and Structure | 课程概览与结构
The AQA A Level Chemistry course is divided into three broad content pillars: physical chemistry, inorganic chemistry and organic chemistry. These are taught alongside 12 required practical activities and mathematical skill requirements that are embedded across all topics.
AQA A Level 化学课程分为三大内容支柱：物理化学、无机化学和有机化学。这些内容与 12 个必修实验活动以及嵌入所有主题的数学技能要求一起教授。
Students sit three exam papers at the end of the course. All papers are taken in the same examination series and contain a mixture of short answer, long answer and data-response questions with a significant calculation load.
学生在课程结束时参加三场考试。所有试卷在同一考季进行，包含简答题、长答题和数据分析题，并有较大的计算量。
| Paper | 试卷 | Content Focus | 内容重点 | Duration and Marks | 时长与分值 | Weighting | 权重 |
|---|---|---|---|
| Paper 1 | 试卷一 | Relevant physical chemistry and all inorganic chemistry | 相关物理化学与全部无机化学 | 2 hours, 105 marks | 2 小时，105 分 | 35% |
| Paper 2 | 试卷二 | Relevant physical chemistry and all organic chemistry | 相关物理化学与全部有机化学 | 2 hours, 105 marks | 2 小时，105 分 | 35% |
| Paper 3 | 试卷三 | Any content and any practical skills | 任何内容与任何实验技能 | 2 hours, 90 marks | 2 小时，90 分 | 30% |
2. Physical Chemistry Content | 物理化学内容
Physical chemistry builds the quantitative backbone of the subject. At AS level, students study atomic structure, amount of substance, bonding, energetics, kinetics, chemical equilibria and redox equations. These topics require fluent use of the mole concept and energy calculations.
物理化学构建了这门学科的定量基础。在 AS 阶段，学生学习原子结构、物质的量、键合、能量学、动力学、化学平衡和氧化还原方程。这些主题要求熟练运用摩尔概念和能量计算。
At A Level, physical chemistry extends to thermodynamics, rate equations, the equilibrium constant Kp, electrode potentials and acid-base equilibria. These topics are heavily examined in both Paper 1 and Paper 2.
在 A Level 阶段，物理化学延伸到热力学、速率方程、平衡常数 Kp、电极电势和酸碱平衡。这些主题在试卷一和试卷二中考查较多。
