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Chemistry
Edexcel GCSE Chemistry
Paper 1

Edexcel GCSE Chemistry · 1CH0

Edexcel GCSE Chemistry Paper 1

Length: 1 hour 45 minutes
Marks: 100
Weighting: 50% of the GCSE

From the Edexcel specification (opens in a new tab), Issue 4, PDF page 8.

6 sections · 175 revision notes · 8 past papers

What’s on Paper 1

Formulae, Equations and Hazards

Formulae, Equations and HazardsOn both papers7 notes

Formulae, Equations and Hazards

0.1 Formulae of Elements and Ions Free
0.2

Paper 1 past papers

June 2024 1F (Foundation)
Question paper Mark scheme

Other papers

Word Equations

Pro

0.3 Balanced Chemical Equations Pro

0.4 Ionic Equations Pro

0.5 Hazard Symbols Pro

0.6 Risk Evaluation and Precautions Pro

Mathematical Applications Pro

Formulae, Equations and Hazards overview

Topic 1 Key Concepts in Chemistry

Atomic Structure · The Periodic Table · Ionic Bonding · Covalent Bonding · Types of Substance · Calculations Involving Masses · Suggested PracticalsOn both papers67 notes

Atomic Structure

1.1 Dalton Atomic Model Free
1.2 Structure of an Atom Pro
1.3 Relative Charge and Mass Pro
1.4 Protons and Electrons Pro
1.5 Nucleus Size Pro
1.6 Mass of an Atom Pro
1.7 Mass Number Pro
1.8 Atoms and Protons Pro
1.9 Isotopes Pro
1.10 Calculating Subatomic Particles Pro
1.11 Relative Atomic Masses Pro
1.12 Calculating Relative Atomic Mass Pro
Mathematical Applications Pro

The Periodic Table

1.13 Mendeleev's Arrangement Pro
1.14 Mendeleev's Predictions Pro
1.15

Ionic Bonding

1.21 Formation of Ionic Bonds Pro
1.22 Definition of an Ion Pro
1.23 Subatomic Particles in Ions

Covalent Bonding

1.28 Formation of Covalent Bonds Pro
1.29 Covalent Bonding and Molecules Pro
1.30

Types of Substance

1.32 Classification of Substances Pro
1.33 Properties of Ionic Compounds Pro
1.34

Calculations Involving Masses

1.43 Relative Formula Mass and Percentage by Mass Pro
1.44 Empirical Formulae Calculation Pro

Suggested Practicals

Size of Oil Molecule Pro
Metal Properties Pro
Bonding Types Investigation Pro

Key Concepts in Chemistry overview

Topic 2 States of Matter and Mixtures

States of Matter · Separating and Purifying Substances14 notes

States of Matter

2.1 Particles in States of Matter Free
2.2 Interconversions Between States Pro
2.3 Particle Changes During Interconversions Pro
2.4 Predicting Physical State Pro
Mathematical Applications Pro

Separating and Purifying Substances

2.5 Pure Substances vs Mixtures Pro
2.6 Interpretation of Melting Point Data Pro

States of Matter and Mixtures overview

Topic 3 Chemical Changes

Acids · Electrolytic Processes33 notes

Acids

3.1 Ion Sources in Acids and Alkalis Free
3.2 pH Scale Pro
3.3 Indicators Pro
3.4 Ion Concentration and pH Pro
3.5 pH and Logarithmic Concentration Pro
3.6 Core Practical: pH Change Investigation Pro
3.7 Dilute vs Concentrated Pro
3.8 Weak vs Strong Acids Pro
3.9 Definition of a Base Pro
3.10 Alkalis as Soluble Bases Pro
3.11 Reactions of Acids Pro
3.12 Tests for Gases Pro
3.13 Neutralisation Pro
3.14 Ionic Neutralisation Pro
3.15 Salt Preparation from Insoluble Reactants Pro
3.16 Salt Preparation from Soluble Reactants Pro
3.17 Core Practical: Copper Sulfate Crystals Pro
3.18 Acid-Alkali Titration Method Pro
3.19 Solubility Rules Pro
3.20 Predicting Precipitates Pro
3.21 Preparation of Insoluble Salts Pro
Suggested Practicals Pro

Electrolytic Processes

3.22 Electrolytes Pro
3.23 Electrolysis Definition Pro
3.24 Ion Movement

Chemical Changes overview

Topic 4 Extracting Metals and Equilibria

Obtaining and Using Metals · Reversible Reactions and Equilibria19 notes

Obtaining and Using Metals

4.1 Relative Reactivity of Metals Free
4.2 Displacement as Redox Pro
4.3 Reactivity Series Pro
4.4 Occurrence of Metals Pro
4.5 Oxidation and Reduction (Oxygen) Pro
4.6 Reduction in Extraction Pro
4.7 Extraction Methods and Reactivity Pro
4.8 Biological Extraction Methods Pro
4.9 Resistance to Oxidation Pro
4.10 Recycling Metals Pro
4.11 Life-Cycle Assessment Pro
4.12 Evaluation of LCA Data Pro
Suggested Practicals Pro

Reversible Reactions and Equilibria

4.13 Reversible Reactions Pro
4.14 Dynamic Equilibrium Pro
4.15

Extracting Metals and Equilibria overview

Topic 5 Transition Metals, Quantitative Analysis and Equilibria

Transition Metals, Alloys and Corrosion · Quantitative Analysis · Dynamic Equilibria · Chemical Cells and Fuel Cells35 notes

Transition Metals, Alloys and Corrosion

5.1C Transition Metals Properties Free
5.2C Corrosion Pro
5.3C Prevention of Rusting Pro
5.4C Electroplating Pro
5.5C Alloys and Strength Pro
5.6C Alloy Steels Pro
5.7C Uses of Metals Pro
Suggested Practicals 4 notes

Quantitative Analysis

5.8C Concentration Calculations Pro
5.9C Core Practical: Acid-Alkali Titration Pro

Dynamic Equilibria

5.19C Haber Process Description Pro
5.20C Rate of Attainment of Equilibrium Pro

Chemical Cells and Fuel Cells

5.25C Chemical Cells Pro
5.26C Hydrogen-Oxygen Fuel Cells Pro

Transition Metals, Quantitative Analysis and Equilibria overview

June 2024 1H (Higher)

QPQuestion paper MSMark scheme

June 2023 1F (Foundation)
Question paper Mark scheme
June 2023 1H (Higher)
Question paper Mark scheme

All Edexcel GCSE Chemistry past papers

Atomic Mass Ordering and Isotopes

Pro

1.16 Atomic Number and Position Pro

1.17 Periodic Table Structure Pro

1.18 Metals and Non-metals Pro

1.19 Electronic Configuration Prediction Pro

1.20 Configuration and Periodic Position Pro

Pro

1.24 Ion Formation in Groups 1, 2, 6, and 7 Pro

1.25 Nomenclature of Compounds Pro

1.26 Formulae of Ionic Compounds Pro

1.27 Ionic Lattice Structure Pro

Mathematical Applications Pro

Size of Atoms and Molecules

Pro

1.31 Formation of Simple Molecular Substances Pro

Mathematical Applications Pro

Properties of Simple Covalent Compounds

Pro

1.35 Allotropes of Carbon Pro

1.36 Structures of Graphite and Diamond Pro

1.37 Uses of Graphite and Diamond Pro

1.38 Fullerenes and Graphene Pro

1.39 Simple Polymers Pro

1.40 Properties of Metals Pro

1.41 Limitations of Models Pro

1.42 Metals vs Non-metals Properties Pro

Mathematical Applications Pro

1.45

Deduction of Formulae

Pro

1.46 Empirical Formula Experiment Pro

1.47 Law of Conservation of Mass Pro

1.48 Mass Calculations from Equations Pro

1.49 Concentration Calculation Pro

1.50 Mole Definition Pro

1.51 Moles and Particles Calculations Pro

1.52 Limiting Reactants Pro

1.53 Stoichiometry Deduction Pro

Mathematical Applications 2 notes

Chemical Calculations: Ratios, Empirical Formulae & Moles Pro
Mathematical Skills: Algebra, Standard Form & Accuracy Pro

Properties of Compounds Pro

Classification of Elements and Compounds Pro

Empirical Formula Determination Pro

Mass Changes Pro

Formula of Hydrated Salt Pro

2.7

Separation Techniques

Pro

2.8 Selection of Separation Technique Pro

2.9 Paper Chromatography Pro

2.10 Interpretation of Chromatograms Pro

2.11 Core Practical: Composition of Inks Pro

2.12 Potable Water Treatment Pro

Mathematical Applications Pro

Pro

3.25 Products of Electrolysis Pro

3.26 Predicting Molten Electrolysis Products Pro

3.27 Half Equations Pro

3.28 Oxidation and Reduction (Electrons) Pro

3.29 Electrode Reactions Pro

3.30 Purification of Copper Pro

3.31 Core Practical: Electrolysis of Copper Sulfate Pro

Suggested Practicals Pro

Formation of Ammonia

Pro

4.16 Haber Process Conditions Pro

4.17 Predicting Equilibrium Position Pro

Suggested Practicals Pro

Practical: Investigating the Properties of Alloys Pro

5.10C

Titration Calculations

Pro

5.11C Percentage Yield Pro

5.12C Actual vs Theoretical Yield Pro

5.13C Atom Economy Definition Pro

5.14C Calculating Atom Economy Pro

5.15C Choosing Reaction Pathways Pro

5.16C Molar Volume Pro

5.17C Molar Volume Calculations Pro

5.18C Avogadro's Law Calculations Pro

Mathematical Applications 2 notes

Calculating Yields and Atom Economy Pro
Mathematical Techniques and Unit Conversions Pro

Suggested Practicals Pro

5.21C

Conditions in Industrial Reactions

Pro

5.22C Fertilisers Pro

5.23C Ammonia and Nitric Acid Reaction Pro

5.24C Production of Ammonium Sulfate Pro

Suggested Practicals Pro

5.27C

Evaluation of Fuel Cells

Pro