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IGCSE Chemistry 0620 — Forms 4–5 Complete Course
4.1 Acids, bases and the pH scale
IGCSE Chemistry 0620 — Forms 4–5 Complete Course
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Unit C1 · States of matter and separating
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1.1 States of matter, changes of state and diffusion
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Quiz · 1.1 States of matter, changes of state and diffusion
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1.2 Pure substances, mixtures and separation
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Quiz · 1.2 Pure substances, mixtures and separation
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1.3 Chromatography and Rf values
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Quiz · 1.3 Chromatography and Rf values
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1.4 Apparatus and experimental design
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Unit C2 · Atoms, elements and bonding
2.1 Atomic structure and electron shells
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Quiz · 2.1 Atomic structure and electron shells
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2.2 Isotopes
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2.3 Ions and ionic bonding
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2.4 Covalent bonding and simple molecules
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2.5 Giant structures and metallic bonding
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Unit C3 · Stoichiometry
3.1 Formulae and balanced equations
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3.2 Relative masses
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3.3 The mole and reacting masses
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3.4 Gas volumes and concentration
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3.5 Percentage yield, purity and empirical formulae
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Unit C4 · Acids, bases and salts
4.1 Acids, bases and the pH scale
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Quiz · 4.1 Acids, bases and the pH scale
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4.2 Oxides
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4.3 Preparing salts
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4.4 Acid–base titrations
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Unit C5 · The Periodic Table
5.1 Arrangement of elements and Group I
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5.2 Group VII halogens
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5.3 Transition elements and noble gases
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Unit C6 · Energetics and chemical reactions
6.1 Exothermic and endothermic reactions
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6.2 Rate of reaction: measuring and factors
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6.3 Collision theory and catalysts
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6.4 Reversible reactions and equilibrium
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6.5 Haber and Contact processes
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6.6 Redox
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Unit C7 · Electrochemistry
7.1 Electrolysis: principles and products
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7.2 Electrolysis of solutions and electroplating
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7.3 Hydrogen–oxygen fuel cells
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Unit C8 · Metals
8.1 Properties, uses and alloys
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8.2 The reactivity series
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8.3 Corrosion and rust prevention
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8.4 Extraction of metals
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Unit C9 · Chemistry of the environment
9.1 Water and water treatment
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9.2 Fertilisers
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9.3 Air quality and climate change
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Unit C10 · Organic chemistry
10.1 Organic families, formulae and naming
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10.2 Fuels and alkanes
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10.3 Alkenes and cracking
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10.4 Alcohols
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10.5 Carboxylic acids and esters
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10.6 Polymers
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Unit C11 · Chemical analysis
11.1 Tests for ions
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11.2 Tests for gases and water
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Mock Exam Papers · 5 full sets with marking keys
Mock Set 1 — Papers 1, 2, 3, 4 and 6
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Mock Set 2 — Papers 1, 2, 3, 4 and 6
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Mock Set 3 — Papers 1, 2, 3, 4 and 6
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Mock Set 4 — Papers 1, 2, 3, 4 and 6
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Mock Set 5 — Papers 1, 2, 3, 4 and 6
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Module 4 of 12
Lesson 1 of 8
· 4.1 Acids, bases and the pH scale
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