0620/221 mark
Feb/Mar 2025 · Question 1
1.1 Solids, liquids and gases
1.1 Solids, liquids and gases

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Feb/Mar 2025 · Question 2
1.1 Solids, liquids and gases
1.1 Solids, liquids and gases

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Feb/Mar 2025 · Question 3
1.2 Diffusion
1.2 Diffusion

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Feb/Mar 2025 · Question 4
2.2 Atomic structure and the Periodic Table, 2.4 Ions and ionic bonds
2.2 Atomic structure and the Periodic Table2.4 Ions and ionic bonds

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Feb/Mar 2025 · Question 5
2.3 Isotopes
2.3 Isotopes

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Feb/Mar 2025 · Question 6
2.4 Ions and ionic bonds
2.4 Ions and ionic bonds

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Feb/Mar 2025 · Question 7
2.5 Simple molecules and covalent bonds
2.5 Simple molecules and covalent bonds

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Feb/Mar 2025 · Question 8
2.7 Metallic bonding
2.7 Metallic bonding

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Feb/Mar 2025 · Question 9
3.1 Formulae
3.1 Formulae

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Feb/Mar 2025 · Question 10
3.3 The mole and the Avogadro constant
3.3 The mole and the Avogadro constant

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Feb/Mar 2025 · Question 11
3.1 Formulae
3.1 Formulae

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Feb/Mar 2025 · Question 12
3.3 The mole and the Avogadro constant
3.3 The mole and the Avogadro constant

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Feb/Mar 2025 · Question 13
4.1 Electrolysis
4.1 Electrolysis

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Feb/Mar 2025 · Question 14
4.1 Electrolysis
4.1 Electrolysis

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Feb/Mar 2025 · Question 15
4.2 Hydrogen–oxygen fuel cells
4.2 Hydrogen–oxygen fuel cells

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Feb/Mar 2025 · Question 16
5.1 Exothermic and endothermic reactions
5.1 Exothermic and endothermic reactions

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Feb/Mar 2025 · Question 17
5.1 Exothermic and endothermic reactions
5.1 Exothermic and endothermic reactions

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Feb/Mar 2025 · Question 18
6.1 Physical and chemical changes
6.1 Physical and chemical changes

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Feb/Mar 2025 · Question 19
6.2 Rate of reaction
6.2 Rate of reaction

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Feb/Mar 2025 · Question 20
6.3 Reversible reactions and equilibrium
6.3 Reversible reactions and equilibrium

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Feb/Mar 2025 · Question 21
6.4 Redox
6.4 Redox

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Feb/Mar 2025 · Question 22
7.1 The characteristic properties of acids and bases
7.1 The characteristic properties of acids and bases

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Feb/Mar 2025 · Question 23
7.2 Oxides, 8.2 Group I properties, 8.3 Group VII properties
7.2 Oxides8.2 Group I properties8.3 Group VII properties

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Feb/Mar 2025 · Question 24
7.3 Preparation of salts, 12.4 Separation and purification
7.3 Preparation of salts12.4 Separation and purification

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Feb/Mar 2025 · Question 25
8.1 Arrangement of elements
8.1 Arrangement of elements

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Feb/Mar 2025 · Question 26
8.3 Group VII properties
8.3 Group VII properties

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Feb/Mar 2025 · Question 27
9.5 Corrosion of metals, 9.4 Reactivity series
9.5 Corrosion of metals9.4 Reactivity series

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Feb/Mar 2025 · Question 28
9.3 Alloys and their properties
9.3 Alloys and their properties

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Feb/Mar 2025 · Question 29
9.4 Reactivity series
9.4 Reactivity series

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Feb/Mar 2025 · Question 30
9.6 Extraction of metals
9.6 Extraction of metals
