For Students
For Teachers
For Parents

Join class Login Sign up

For Students
For Teachers
For Parents
For Schools
Resources

Join class
Login

Revision notes
GCSE
Chemistry
AQA
Higher
Grade 9 - Energy Changes

Grade 9 - Energy Changes

Chemistry: AQA GCSE Higher, topic 5.2.9

Test yourself on Grade 9 - Energy Changes

Practise this topic for free

Previous topic5.2.8 End of Topic Test - Energy Changes Next topic5.2.10 Exam-Style Questions - Fuel Cells

Chemistry: AQA GCSE Higher contents

1 Atomic Structure
- 1.1 Atoms & Elements
  1.1.1 Elements & Compounds
  1.1.2 Chemical Formula
  1.1.3 Chemical Reactions
  1.1.4 Chemical Equations
  1.1.5 Mixtures
  1.1.6 Separating Mixtures
  1.1.7 Separating Mixtures 2
  1.1.8 Model of the Atom
  1.1.9 Sub-Atomic Particles
  1.1.10 Atom Size
  1.1.11 Atomic Number
  1.1.12 Atomic Number - Calculations
  1.1.13 Isotopes
  1.1.14 Isotopes HyperLearning
  1.1.15 Isotopes - Calculations
  1.1.16 Relative Atomic Mass
  1.1.17 Electron Structure
  1.1.18 Periodic Table
  1.1.19 The History of the Periodic Table
  1.1.20 Metals & Non-Metals
  1.1.21 Noble Gases
  1.1.22 Displacement Reaction
  1.1.23 Halogens
  1.1.24 Alkali Metals
  1.1.25 Alkali Metals - Properties
  1.1.26 Transition Metals
  1.1.27 Transition Metals - Special Properties
  1.1.28 End of Topic Test - Atomic Structure
  1.1.29 Grade 9 - Atoms & Elements
  1.1.30 Exam-Style Questions - Atomic Structure
  1.1.31 Application Questions - Atomic Structure
  1.1.32 Diagnostic Misconceptions - Balancing Equations
  1.1.33 Diagnostic Misconceptions - Isotopes
2 Chemical Bonding
3 Quantitative Chemistry
- 3.1 Chemical Measurements
  3.1.1 Conservation of Mass
  3.1.2 Relative Formula Mass
  3.1.3 Calculating Relative Formula Mass
  3.1.4 Relative Formula Mass - Calculations
  3.1.5 Changing Mass
  3.1.6 Measuring Mass
  3.1.7 Equations
  3.1.8 Empirical Formula
  3.1.9 Introducing Moles
  3.1.10 Relative Formula Mass
  3.1.11 Amounts of Substance
  3.1.12 Moles to Balance Equations
  3.1.13 Limiting Reactants
  3.1.14 Concentration of Solutions
  3.1.15 Moles - Calculations
  3.1.16 Percentage Yield
  3.1.17 Calculating Yield
  3.1.18 Percentage Yield - Calculations
  3.1.19 Moles & Yield
  3.1.20 Moles & Yield 2
  3.1.21 Atom Economy
  3.1.22 Reaction Pathway
  3.1.23 Atom Economy - Calculations
  3.1.24 Concentrations of Solute
  3.1.25 Calculating the Amount of Solute
  3.1.26 Amount of Substance in Relation to Volumes and Gas
  3.1.27 Concentrations & Amounts - Calculations
  3.1.28 Empirical Formula - Calculations
  3.1.29 End of Topic Test - Quant Chemistry
  3.1.30 Grade 9 - Quantitative Chemistry
  3.1.31 Exam-Style Questions - Moles
  3.1.32 Diagnostic Misconceptions - Calculating RFM
  3.1.33 Diagnostic Misconceptions - Moles
4 Chemical Changes
5 Energy Changes
- 5.1 Exothermic & Endothermic Reactions
  5.1.1 Energy Conservation
  5.1.2 Exothermic Reactions
  5.1.3 Endothermic Reactions
  5.1.4 Required Practical: Temperature Changes
  5.1.5 Reaction Profiles Requirements
  5.1.6 Reaction Profiles
  5.1.7 Reaction Profiles - Catalysed vs Uncatalysed
  5.1.8 Reaction Profiles - Chemical Bonds
  5.1.9 Diagnostic Misconceptions - Source of Energy
- 5.2 Chemical Cells & Fuel Cells
  5.2.1 Chemical Cells
  5.2.2 Changing Voltage Output
  5.2.3 Batteries
  5.2.4 Charging of Cells
  5.2.5 Fuel Cells
  5.2.6 Hydrogen Fuel Cell
  5.2.7 Hydrogen as an Alternative
  5.2.8 End of Topic Test - Energy Changes
  5.2.9 Grade 9 - Energy Changes
  5.2.10 Exam-Style Questions - Fuel Cells
6 The Rate & Extent of Chemical Change
- 6.1 Rate of Reaction
  6.1.1 Chemical Reactions
  6.1.2 Plotting Reaction Rates
  6.1.3 Required Practical: Effect of Concentration
  6.1.4 Collision Theory
  6.1.5 Key Factors of Rate of Reaction
  6.1.6 Catalysts
  6.1.7 Catalysts in Industry
- 6.2 Reversible Reactions
  6.2.1 Reversible Reactions
  6.2.2 Dynamic Equilibrium
  6.2.3 Conditions and Equilibrium
  6.2.4 Equilibrium Position - Temperature
  6.2.5 Equilibrium Position - Pressure
  6.2.6 Equilibrium Position - Concentration
  6.2.7 End of Topic Test - Rates of Reaction
  6.2.8 Grade 9 - Rate & Extent of Chemical Change
  6.2.9 Exam-Style Questions - Reversible Reactions
  6.2.10 Diagnostic Misconceptions - Temperature
  6.2.11 Diagnostic Misconceptions - Pressure
  6.2.12 Diagnostic Misconceptions - Concentration
  6.2.13 Diagnostic Misconceptions - Catalysts
7 Organic Chemistry
- 7.1 Carbon Compounds
  7.1.1 Crude Oil
  7.1.2 Properties of Hydrocarbons
  7.1.3 Alkanes
  7.1.4 Smallest Alkanes
  7.1.5 Fractional Distillation
  7.1.6 Process of Fractional Distillation
  7.1.7 Homologous Series
  7.1.8 Burning Hydrocarbons
  7.1.9 Heavy Fractions of Crude Oil
  7.1.10 Cracking
  7.1.11 Uses of Alkenes
  7.1.12 Exam-Style Questions - Organic Compounds
- 7.2 Alkenes & Alcohols
  7.2.1 Structure of Alkenes
  7.2.2 The Shortest Alkenes
  7.2.3 Reactions of Alkenes
  7.2.4 Types of Alkene Reactions
  7.2.5 Alcohols
  7.2.6 The Smallest Alcohols
  7.2.7 Reactions of Alcohols
  7.2.8 Fermentation
  7.2.9 Carboxylic Acids
  7.2.10 The Smallest Carboxylic Acids
  7.2.11 Reactions of Carboxylic Acids
  7.2.12 Addition Polymers
  7.2.13 Addition Polymers Examples
  7.2.14 Condensation Polymers
  7.2.15 Amino Acids
  7.2.16 Naturally Occurring Polymers - Protein (Formation)
  7.2.17 Naturally Occurring Polymers - Protein (Roles)
  7.2.18 Naturally Occurring Polymers - DNA
  7.2.19 Naturally Occurring Polymers - Others
  7.2.20 End of Topic Test - Alkanes & Alkenes
  7.2.21 End of Topic Test - Alcohols, Acids & Polymers
  7.2.22 Grade 9 - Organic Chemistry
  7.2.23 Exam-Style Questions - Alcohols
8 Chemical Analysis
9 Chemistry of the Atmosphere
- 9.1 The Earth's Atmosphere
  9.1.1 Proportions of Gases in the Atmosphere
  9.1.2 The Earth's Early Atmosphere
  9.1.3 Oxygen in the Atmosphere
  9.1.4 Carbon Dioxide in the Atmosphere
  9.1.5 Greenhouse Gases
  9.1.6 Greenhouse Gases & Human Activities
  9.1.7 Greenhouse Gases & Climate
  9.1.8 Climate Change
  9.1.9 Carbon Footprints
  9.1.10 Carbon Footprints Barriers
  9.1.11 Common Atmospheric Pollutants
  9.1.12 Properties of Atmospheric Pollutants
  9.1.13 End of Topic Test - The Earth
  9.1.14 Grade 9 - Chemistry of the Atmosphere
  9.1.15 Exam-Style Questions - Earth's Atmosphere
  9.1.16 Diagnostic Misconceptions - Greenhouse Effect
10 Using Resources

Seneca

Teachers
Parents
Students
Your school
Join class
Get mobile app
Evidence Seneca works

Resources

Revision Notes
International A Level
IGCSE
IB Diploma
Maths
Teacher CPD
Resource Hub
Blog
Free CPD courses
Definitions
Mental health & wellbeing
Find tutors
Become a tutor

Legal

Terms
Privacy - UK
GDPR
Cookies
Privacy - DE + AT
Privacy - ES
Privacy - FR
Privacy - IT

Contact us

learnmore@seneca.io
Instagram
Facebook
YouTube
X
TikTok
Help & FAQs
Press kit

A Level Courses

A Level Biology Revision
A Level Business Revision
A Level Chemistry Revision
A Level Physics Revision
A Level Economics Revision
A Level English Language Revision
A Level English Literature Revision
A Level Geography Revision
A Level History Revision
A Level Political Studies Revision
A Level Psychology Revision
A Level Sociology Revision
A Level Maths Revision

GCSE Courses

GCSE Biology Revision
GCSE Business Revision
GCSE Chemistry Revision
GCSE Physics Revision
GCSE Computer Science Revision
GCSE Design Technology Revision
GCSE English Language Revision
GCSE English Literature Revision
GCSE Food Preparation & Nutrition Revision
GCSE French Revision
GCSE Geography Revision
GCSE German Revision
GCSE History Revision
GCSE Maths Revision
GCSE Media Studies Revision
GCSE Music Revision
GCSE Physical Education Revision
GCSE Religious Studies Revision
GCSE Sociology Revision
GCSE Spanish Revision

International A Level

International A Level Biology Revision
International A Level Chemistry Revision
International A Level Physics Revision

IGCSE

IGCSE Biology Revision
IGCSE Chemistry Revision
IGCSE Physics Revision
IGCSE Geography Revision
IGCSE English Language Revision
IGCSE Computer Science Revision

IB Diploma

IB Biology Revision
IB Physics Revision
IB Chemistry Revision
IB Business Revision
IB Economics Revision

KS3 Courses

KS3 English Revision
KS3 French Revision
KS3 Spanish Revision
KS3 Geography Revision
KS3 History Revision
KS3 Maths Revision
KS3 Science Revision

KS2 Courses

KS2 Computing
KS2 English
KS2 French
KS2 Geography
KS2 History
KS2 Maths
KS2 Science