IGCSE CIE Chemistry: Mind Map Quick Revision | IGCSE CIE 化学：思维导图速记

📚 IGCSE CIE Chemistry: Mind Map Quick Revision | IGCSE CIE 化学：思维导图速记

Mind mapping is a powerful technique to visually organise the vast content of IGCSE Chemistry. By connecting central topics to sub-branches with key terms and relationships, you can speed up memorisation and improve conceptual links. This article provides a structured mind-map revision guide for every major topic in the CIE IGCSE syllabus.

思维导图是一种将IGCSE化学海量内容视觉化组织的强力技巧。通过将中心主题与子分支用关键词和关系相连，你可以加速记忆并强化概念联系。本文为CIE IGCSE大纲中的每个主要主题提供结构化思维导图复习指南。

1. Mind Map: Particulate Nature of Matter | 物质微粒本质思维导图

Start with ‘Matter’ as the central node, branching into Solids (fixed shape, vibrating particles), Liquids (fixed volume, moving particles) and Gases (no fixed shape/volume, rapidly moving particles). Add changes of state as transition arrows: melting, freezing, boiling, condensation, sublimation, each with energy absorbed or released. The kinetic particle theory explains behaviour with temperature and pressure.

以“物质”为中心节点，分支出固态（固定形状、粒子振动）、液态（固定体积、粒子流动）和气态（无固定形状/体积、粒子快速运动）。将物态变化作为过渡箭头：熔化、凝固、沸腾、凝结、升华，并标明能量吸收或释放。粒子运动论用温度和压强解释这些行为。

Extend to ‘Diffusion’: movement of particles from high to low concentration, dependent on relative molecular mass (lighter gases diffuse faster) and temperature. Experimental evidence includes the NH₃ and HCl tube demonstration (white ring of NH₄Cl forms closer to HCl source). Brownian motion, observed with smoke particles, confirms random particle movement.

扩展到“扩散”：粒子从高浓度向低浓度移动，取决于相对分子质量（较轻气体扩散更快）和温度。实验证据包括氨气与氯化氢的玻管演示（NH₄Cl白环靠近HCl源形成）。布朗运动（观察烟雾粒子）证实了粒子的随机运动。

2. Mind Map: Experimental Techniques | 实验技术思维导图

The central idea is ‘Separation Methods’ based on physical properties. Branches: Filtration (insoluble solid from liquid), Crystallisation (soluble solid from solution, via evaporation), Simple Distillation (liquid from solid/liquid mixture, one pure liquid), Fractional Distillation (miscible liquids with different boiling points, e.g. ethanol from water), Chromatography (separate substances by solubility in a solvent, Rf values). Each branch links to the property exploited: particle size, solubility, boiling point.

中心概念是基于物理性质的“分离方法”。分支：过滤（从液体中分离不溶固体）、结晶（从溶液中蒸发得到可溶固体）、简单蒸馏（从液体/固体混合物中分离纯液体）、分馏（分离沸点不同的互溶液体，如从水中分离乙醇）、色谱法（根据在溶剂中的溶解度分离物质，Rf值）。每个分支关联所用性质：粒子大小、溶解度、沸点。

Include ‘Measurement & Purity’: measuring mass (balance), volume (measuring cylinder, burette, pipette), temperature (thermometer), time. Purity is assessed by fixed melting/boiling points; impurities lower melting point and raise boiling point, and broaden the range.

包含“测量与纯度”：测量质量（天平）、体积（量筒、滴定管、移液管）、温度（温度计）、时间。纯度通过固定熔点/沸点来判定；杂质降低熔点、升高沸点并拓宽温度范围。

3. Mind Map: Atomic Structure and Bonding | 原子结构与化学键思维导图

Central node ‘Atom’ contains sub-branches: subatomic particles – proton (p⁺, mass 1, in nucleus), neutron (n⁰, mass 1, in nucleus), electron (e⁻, negligible mass, in shells). Electron arrangement (2,8,8…) determines group and chemical properties. Isotopes are atoms of the same element with different neutron numbers. Build out to ‘Bonding’ types: Ionic (metal + non-metal, transfer of electrons, giant lattice, high m.p., conduct when molten/aqueous), Covalent (non-metal + non-metal, sharing electrons, simple molecular or giant covalent like diamond, graphite, SiO₂), Metallic (lattice of positive ions in sea of delocalised electrons, malleable, conduct electricity).

中心节点“原子”包含子分支：亚原子粒子——质子（p⁺，质量1，在核内）、中子（n⁰，质量1，在核内）、电子（e⁻，质量可忽略，在电子层中）。电子排布（2,8,8…）决定族和化学性质。同位素是同一元素的原子，中子数不同。扩展到“化学键”类型：离子键（金属+非金属，电子转移，巨型晶格，高熔点，熔融/水溶液导电）、共价键（非金属+非金属，共享电子对，简单分子或巨型共价结构如金刚石、石墨、SiO₂）、金属键（正离子晶格浸在离域电子海中，可锻、导电）。

Link properties to bonding: ionic substances dissolve in water, covalent simple molecular have low m.p., giant covalent are hard. Graphite conducts due to delocalised electrons between layers. Include dot-and-cross diagrams as sub-note for each bonding type.

将性质与化学键关联：离子化合物溶于水，简单共价分子熔点低，巨型共价结构坚硬。石墨因层间离域电子而导电。每种键型附上点叉图作为子标注。

4. Mind Map: Stoichiometry & Mole Concept | 化学计量与摩尔思维导图

Start from ‘Mole’ – the chemist’s counting unit, N_A = 6.02 × 10²³ particles. Key formula branches: moles = mass / molar mass (n = m / M_r); moles = volume of gas at rtp / 24 dm³ mol⁻¹ (for gases at room temperature and pressure). Connect to concentration: c = n / V (mol/dm³). Empirical formula from mass or percentage composition, molecular formula = (empirical formula) × n.

从“摩尔”开始——化学家的计数单位，N_A = 6.02 × 10²³个粒子。关键公式分支：摩尔 = 质量 / 摩尔质量（n = m / M_r）；摩尔 = 气体体积在室温常压下 / 24 dm³ mol⁻¹。连接到浓度：c = n / V（mol/dm³）。通过质量或百分比求经验式，分子式 = （经验式）× n。

Add ‘Calculating Reacting Masses’: use the balanced equation to find mole ratio, convert to masses. Limiting reactant determines amount of product. Percentage yield = (actual / theoretical) × 100%. Include titration calculations, where moles of acid = moles of alkali at neutralisation, using n = cV.

添加“计算反应质量”：利用配平方程求摩尔比，换算为质量。限制反应物决定产物量。产率 = （实际产量 / 理论产量）× 100%。包含滴定计算，中和时酸的摩尔数 = 碱的摩尔数，利用 n = cV。

5. Mind Map: Electrochemistry | 电化学思维导图

Central: ‘Electrolysis’ – decomposition by electricity. Sub-branches: Electrolyte (molten or aqueous ionic compound), Anode (+ electrode, oxidation, loss of electrons), Cathode (− electrode, reduction, gain of electrons). For molten compounds: metal forms at cathode, non-metal at anode. For aqueous: consider reactivity series and concentration – more reactive metal (K, Na, Ca, Mg, Al) not discharged at cathode; instead, H₂ from water. Anode: if halide (Cl⁻, Br⁻, I⁻) present, halogen gas; otherwise O₂ from OH⁻.

中心：“电解”——用电分解。子分支：电解质（熔融或水溶液离子化合物）、阳极（+极，氧化，失电子）、阴极（−极，还原，得电子）。熔融化合物：金属在阴极生成，非金属在阳极生成。水溶液：考虑活动顺序和浓度——更活泼金属（K, Na, Ca, Mg, Al）不在阴极析出，而是水产生H₂。阳极：若有卤素离子（Cl⁻, Br⁻, I⁻），生成卤素单质；否则OH⁻产生O₂。

Applications: Electroplating (cathode object to be coated, anode the plating metal, electrolyte contains plating ion), Purification of copper (impure Cu anode, pure Cu cathode, CuSO₄ electrolyte), Extraction of aluminium from Al₂O₃ in molten cryolite (C anode, O₂ reacts with C).

应用：电镀（阴极为待镀件，阳极为镀层金属，电解液含该金属离子）、精炼铜（不纯铜为阳极，纯铜为阴极，CuSO₄为电解液）、从Al₂O₃在熔融冰晶石中提取铝（碳阳极，O₂与C反应）。

6. Mind Map: Chemical Energetics | 化学能量学思维导图

Core: ‘Energy Changes’. Exothermic reactions release heat (ΔH negative), products have less energy; examples: combustion, neutralisation, respiration. Endothermic reactions absorb heat (ΔH positive), products have more energy; examples: photosynthesis, thermal decomposition. Energy level diagrams show reactants and products with arrows. Activate energy is the minimum energy for reaction.

核心：“能量变化”。放热反应释放热（ΔH为负），产物能量更低；例子：燃烧、中和、呼吸。吸热反应吸收热（ΔH为正），产物能量更高；例子：光合作用、热分解。能级图展示反应物和产物及箭头。活化能是反应所需最低能量。

Bond energy calculation: ΔH = energy to break bonds in reactants − energy to release forming bonds in products. Break bonds (endothermic), form bonds (exothermic). If overall bond breaking > bond forming, reaction is endothermic. Always use bond energies from data.

键能计算：ΔH = 反应物断键吸收能量 − 生成物成键释放能量。断键（吸热），成键（放热）。若总断键能 > 总成键能，反应为吸热。始终使用给定数据中的键能。

7. Mind Map: Rate of Reaction & Equilibrium | 反应速率与平衡思维导图

Rate factors branch: Concentration (more particles per volume, more frequent collisions), Temperature (particles move faster, more energy, more successful collisions above activation energy), Surface area (more exposed particles), Catalyst (lowers activation energy, provides alternative pathway). Collision theory states that particles must collide with sufficient energy and correct orientation.

速率因素分支：浓度（单位体积粒子多，碰撞更频繁）、温度（粒子运动更快，能量更高，超过活化能的成功碰撞增多）、表面积（暴露更多粒子）、催化剂（降低活化能，提供替代路径）。碰撞理论指出粒子必须发生有效碰撞，具备足够能量与正确取向。

Reversible reactions and equilibrium: dynamic equilibrium when forward and backward rates equal, concentrations constant. Le Chatelier’s principle: if a condition changes, equilibrium shifts to oppose the change. Temperature (exothermic favoured by low temp), Pressure (high pressure favours side with fewer gas moles), Concentration. Haber process: N₂ + 3H₂ ⇌ 2NH₃, optimum 450°C, 200 atm, iron catalyst.

可逆反应与平衡：动态平衡时正逆向速率相等，浓度恒定。勒夏特列原理：条件改变，平衡向减弱该改变的方向移动。温度（放热反应在低温有利）、压强（高压有利于气体分子数更少的一侧）、浓度。哈伯法：N₂ + 3H₂ ⇌ 2NH₃，最优条件450°C、200 atm、铁催化剂。

8. Mind Map: Acids, Bases and Salts | 酸、碱和盐思维导图

Acids are proton (H⁺) donors; alkalis are soluble bases producing OH⁻. pH scale 0-14, indicators (litmus, methyl orange, phenolphthalein). Strong acids fully dissociate (HCl, H₂SO₄, HNO₃); weak acids partially dissociate (CH₃COOH). Reactions of acids: acid + metal → salt + H₂; acid + base → salt + water; acid + carbonate → salt + water + CO₂. Neutralisation: H⁺ + OH⁻ → H₂O.

酸是质子（H⁺）给体；碱是可溶的氢氧根产生者。pH标度0-14，指示剂（石蕊、甲基橙、酚酞）。强酸完全电离（HCl, H₂SO₄, HNO₃），弱酸部分电离（CH₃COOH）。酸的反应：酸 + 金属 → 盐 + H₂；酸 + 碱 → 盐 + 水；酸 + 碳酸盐 → 盐 + 水 + CO₂。中和：H⁺ + OH⁻ → H₂O。

Preparing salts: Soluble salts – titration (acid + alkali, using indicator, then repeat without indicator) or excess solid method (acid + metal/carbonate/base, filter excess, crystallise). Insoluble salts – precipitation (mix two solutions containing required ions, filter, wash, dry). Naming salts based on acid: chloride (HCl), sulfate (H₂SO₄), nitrate (HNO₃).

制备盐：可溶盐——滴定法（酸+碱，用指示剂，然后无指示剂重复）或过量固体法（酸+金属/碳酸盐/碱，过滤过量物，结晶）。不溶盐——沉淀法（混合含所需离子的两种溶液，过滤、洗涤、干燥）。根据酸命名盐：氯化物（HCl）、硫酸盐（H₂SO₄）、硝酸盐（HNO₃）。

9. Mind Map: Periodic Table and Metals | 周期表与金属思维导图

Periodic Table central: Groups are vertical, Periods horizontal. Group I (Alkali metals): Li, Na, K – reactivity increases down the group, low density, react with water to form metal hydroxide + H₂. Group VII (Halogens): F₂, Cl₂, Br₂, I₂ – reactivity decreases down, colour darkens, state changes gas→solid. Displacement: more reactive halogen displaces less reactive. Group VIII (Noble gases): unreactive, full outer shells. Transition metals: high m.p., coloured compounds, catalysts.

周期表中心：族是纵列，周期是横行。第I族（碱金属）：Li, Na, K——反应活性向下递增，密度小，与水反应生成金属氢氧化物和H₂。第VII族（卤素）：F₂, Cl₂, Br₂, I₂——反应活性向下递减，颜色加深，状态由气态变为固态。置换反应：较活泼卤素置换较不活泼卤素。第VIII族（稀有气体）：不反应，满外层电子。过渡金属：高熔点，有色化合物，可作催化剂。

Metals and Reactivity Series: K, Na, Ca, Mg, Al, (C), Zn, Fe, (H), Cu, Ag, Au. Extraction methods: more reactive metals (above carbon) extracted by electrolysis (Al, Na); below carbon extracted by reduction with carbon (Fe from blast furnace: Fe₂O₃ + 3CO → 2Fe + 3CO₂). Aluminium requires electrolysis of Al₂O₃. Alloys are mixtures of metals, e.g. steel (Fe + C). Rusting: Fe + O₂ + H₂O → hydrated iron(III) oxide; prevention by barrier, galvanising, sacrificial protection.

金属与活动顺序：K, Na, Ca, Mg, Al, (C), Zn, Fe, (H), Cu, Ag, Au。提取方法：比碳活泼的金属（碳以上）用电解法提取（Al, Na）；碳以下用碳还原（鼓风炉炼铁：Fe₂O₃ + 3CO → 2Fe + 3CO₂）。铝需电解Al₂O₃。合金是金属混合物，如钢（Fe, C）。生锈：Fe + O₂ + H₂O → 水合氧化铁(III)；防护：涂层、镀锌、牺牲保护。

10. Mind Map: Organic Chemistry | 有机化学思维导图

Organic compounds contain carbon. Homologous series have same general formula, functional group, similar reactions, gradual trend in physical properties. Alkanes (CₙH₂ₙ₊₂, saturated, single bonds) – combustion (CO₂ + H₂O), substitution with halogens (UV). Alkenes (CₙH₂ₙ, unsaturated, C=C double bond) – addition reactions: hydrogenation, halogenation, with steam (hydration to alcohol). Test: bromine water turns from orange to colourless.

有机化合物含碳。同系列具有相同通式、官能团、相似反应，物理性质渐变。烷烃（CₙH₂ₙ₊₂，饱和，单键）——燃烧生成CO₂和H₂O，与卤素在紫外线下取代。烯烃（CₙH₂ₙ，不饱和，C=C双键）——加成反应：加氢、加卤素、与水蒸气加成（水化制醇）。检测：溴水由橙色变为无色。

Alcohols (CₙH₂ₙ₊₁OH) – oxidation to carboxylic acids (using acidified KMnO₄ or Cr₂O₇²⁻), combustion. Carboxylic acids (Cₙ₋₁H₂ₙ₋₁COOH) – weak acids, react with alcohols to form esters (esterification, catalyst conc. H₂SO₄). Polymers: addition polymerisation from alkenes (e.g. poly(ethene)); condensation polymerisation forms polyesters and polyamides (nylon). Natural polymers: proteins, starch.

醇（CₙH₂ₙ₊₁OH）——氧化为羧酸（用酸化KMnO₄或Cr₂O₇²⁻），燃烧。羧酸（Cₙ₋₁H₂ₙ₋₁COOH）——弱酸，与醇反应生成酯（酯化反应，催化剂浓H₂SO₄）。聚合物：由烯烃加聚而成（如聚乙烯）；缩聚形成聚酯和聚酰胺（尼龙）。天然高分子：蛋白质、淀粉。

Published by TutorHao | Chemistry Revision Series | aleveler.com

更多咨询请联系16621398022（同微信）

IGCSE CIE Chemistry: Mind Map Quick Revision | IGCSE CIE 化学：思维导图速记