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IB Chemistry (SL & HL) for teachers
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IB Chemistry (SL & HL) for teachers
Start here
How to navigate the site
Using student access
Creating student accounts
Short cut to give students access to a page
Setting tasks
Managing student accounts & mark book
Using qBank
Annotating any page
For teachers new to the IB
Teaching, learning & resources
Chemistry - part of the IB Diploma
Chemistry within Group 4
IB Chemistry teaching
Syllabus
Possible teaching schedules
Possible syllabus interpretation problems
Teaching SL & HL together
Deadlines and feedback
Approaches to teaching
Teaching skills
Teaching styles
Workshops
Supporting student university applications
Approaches to learning
Thinking skills
Communication skills
Social skills
Self-management skills
Research skills
Reflection skills
Resources
AI & Education
Teaching students to think critically
Unit plans
An example of a unit plan
Do you speak IB?
Delivering the programme
Major changes for the 2023 programme
Analysis of the specimen HL Paper 1 MC exam
Teaching each topic & sub-topic
S1 Models of the particulate nature of matter
S1.1 Introduction to the particulate nature of matter
S1.2 The nuclear atom
S1.2 (AHL) The nuclear atom
S1.3 Electron configuration
S1.3 & S3.1 (AHL) Electron configuration
S1.4 (1) Counting particles by mass: the mole
S1.4 (2) & R2.1 Concentration & amount of chemical change
S1.4 (3) & S1.5 Avogadro's law & ideal gases
S2 Models of bonding & structure
S2.1 The ionic model
S2.2 The covalent model (1)
S2.2 The covalent model (2)
S2.2 The covalent model (3)
S2.2 (AHL) The covalent model (1)
S2.2 (AHL) The covalent model (2)
S2.3 The metallic model
S2.4 From models to materials
S2.4 (AHL) From models to materials
S3 Classification of matter
S3.1 Periodic table (1) - classification of elements
S3.1 Periodic table (2) - periodicity & trends
Quiz on periodic trends
S3.1 Periodic table (3) - oxidation states
S3.1 (AHL) Periodic table - transition elements
S3.2 Functional groups - classification of organic compounds
S3.2 (AHL) Functional groups - stereoisomerism
S3.2 (AHL) Mass spectrometry, IR & 1H NMR spectroscopy
R1 What drives chemical reactions
R1.1 Measuring energy changes
R1.2 Energy cycles in reactions
R1.2 (AHL) Standard enthalpy changes & Born-Haber cycle
R1.3 Energy from fuels
R1.4 (AHL) Entropy & spontaneity
R2 How much, how fast, how far?
R2.1 Amount of chemical change
R2.2 Rate of reaction & collision theory
R2.2 (AHL) Rate expression & reaction mechanism
R2.2 (AHL) Activation energy
R2.3 The extent of chemical change
R2.3 (AHL) Reaction quotient & equilibrium law
R3 What are the mechanisms of chemical change?
R3.1 Brønsted-Lowry acids and bases
R3.1 pH scale and Kw
R3.1 Strong & weak acids & bases
R3.1 Neutralization reactions
R3.1 (AHL) pOH, Ka, Kb, pKa and pKb
R3.1 (AHL) Salt hydrolysis, pH titration curves and indicators
R3.1 (AHL) Buffer solutions
R3.2 Oxidation & reduction
R3.2 Electrochemical cells
R3.2 (AHL) Electrochemical cells
R3.2 Organic redox reactions
R3.3 Electron sharing reactions
R3.4 Electron-pair sharing reactions
R3.4 (AHL) Electron-pair sharing reactions
Explaining the stability of carbocations
Covering the skills
Error & uncertainty
Graphing techniques
Managing variables
Significant figures & use of scientific notation
Use of SI units & prefixes
Using logarithms
Using sensors (probes) & data logging
Using spreadsheets
The Nature of Science
Key terms & concepts
NOS & Critical Thinking
How the elements were named
Nature of Science questions
Is IB Diploma chemistry truly international?
The Culture of Chemistry
Incorporating IB Chemistry into a real world context
Topic S1 (1) Particulate nature and amount of matter
Topic S1 (2) Nuclear atom and electron configuration
Topic S2 Models of bonding and structure
Topic S3 (1) Periodic table & periodicity
Topic S3 (2) Classification of organic compounds
Topic S3 (AHL) Spectroscopy
Topic R1 What drives chemical reactions?
Topic R2 (1) The rate of chemical change
Topic R2 (2) The extent of chemical change
Topic R3 (1) Proton transfer reactions
Topic R3 (2) Electron transfer reactions
Topic R3 (3) Electron & electron pair sharing reactions
Making links between topics
Relating Topics S2 to all the other topics
Example of connections
Linking the topics to copper(II) sulfate
Linking the topics for benzene
Ammonium nitrate & IB Chemistry
Dimethyl sulfide & IB chemistry
Hydroxychloroquine & IB Chemistry
Multiple choice tests for each topic
SL Multiple Choice questions by topic
HL Multiple Choice questions by topic
Experimental programme & IA
Internal Assessment
'Scaffolding' & the Inquiry process
Timing & organisation
Choosing the research question
Research design
Data analysis
Conclusion
Evaluation
Writing the report
Check list for the IA report
Marking & internally standardizing the IA
Submitting IA marks & samples for moderation
Genuine examples of marked & moderated IA reports
Sample 1: Genuine marked & moderated IA
Sample 2: Genuine marked & moderated IA
Sample 3: Genuine marked & moderated IA
Using secondary data for the IA
Gaining full marks for a databased IA
A genuine student IA database/simulation report
History of Internal Assessment
'Hands on' practicals
Common chemical reactions
Determining the mass of argon in a room
Formula of magnesium oxide
Determining the Mr of an unknown gas
3-D molecular modelling
Elements & oxides of the third period
Reactions of halogens & halide ions
Boiling points of mixtures
Preparation of nylon 6,6
Enthalpy changes
Rate-dependent factors
Measuring rate of reaction
Iodination of propanone
Determining Ea for a reaction
Le Chatelier's principle
Determining Kc for an esterification reaction
Acid-alkali titration
Titrations with a pH meter
Determining the pKa of a weak acid
Analysis of aspirin tablets
A green acid-base practical problem
CaCO3 in egg shells
Chlorine content of swimming pool water
Redox titration with KMnO4
Determination of vitamin C content
Percentage of copper in brass
Analysis of Cu(II) ions in solution
Redox reactions of vanadium
Voltaic cells
Electrolytic cells
Oxidation of ethanol
Reactions of organic compounds
Hydrolysis of halogenoalkanes
Determination of an organic structure
Preparation & purification of aspirin
Preparation of 1,3-dinitrobenzene
Collaborative Sciences Project
Practicalities
Reflective statement
A new laboratory?
External assessment
Essential Facts
Objectives & command terms
Grade descriptors
Grade boundaries
Paper 1
Advice to students (Paper 1)
Practice Paper 1 (Section A) exams
Practice Paper 1 (Section B) questions
Thinking through multiple choice questions
The data booklet and multiple choice exams
Paper 2
Advice to students (Paper 2)
Areas of difficulty
VSEPR
IE graph(s)
Misuse of formulas
Understanding the activity series
'Curly arrows'
Understanding and using ΔG
Factors affecting the rate of nucleophilic substitution reactions
Teaching standard reduction potentials correctly
Understanding hybridization
Practice SL Paper 2 ('mock') exams
Practice HL Paper 2 ('mock') exams
The examination process
Setting the exam papers
Predicted grades
Marking the papers
Commenting on the exams
Grade Awarding
Enquiry upon results
Chief Examiner's subject report
Retaking the exam
FAQs about external assessment
IB Core
Learner Profile
Extended Essays (Last assessment 2026)
Overview
What is an Extended Essay
Aims
Objectives
World studies
Responsibilities
School
Supervisor
Student
Individual school approach
Resources
Choosing the subject
Correct referencing
Writing a bibliography
Plagiarism
Student EE handbooks
Research
Choosing the research topic
Framing the Research Question
Researching the Essay
Writing the essay
Check List
The first draft
Assessment
Reflections on planning and progress
Criterion A
Criterion B
Criterion C
Criterion D
Criterion E
Grading system
Summary of advice
FAQs
Extended Essays (First assessment 2027)
Overview
What is an Extended Essay?
Aims
Objectives
Grading system
Interdisciplinary extended essays
Responsibilities
School
Supervisor
Student
Individual school approach
Resources
Choosing the subject
Correct referencing
Writing a bibliography
Plagiarism
Research
Choosing the research topic
Framing the Research Question
Researching the Essay
Writing the essay
The first draft
Check List
Assessment
Reflections on progress
Criterion A
Criterion B
Criterion C
Criterion D
Criterion E
Summary of advice
Theory of Knowledge (TOK)
The 12 TOK concepts
Why TOK & Chemistry?
Language of Chemistry
IUPAC
Emotion & Chemistry
A modern paradigm
Dinosaur chemistry
How useful are oxidation states?
Fast track to tests & questions
SL Multiple choice 'quizzes' on sub-topics
SL Multiple choice tests on individual topics
SL Questions on each sub-topic
SL Practice ('mock') papers and questions
HL Multiple choice 'quizzes' on sub-topics
HL Multiple choice tests on individual topics
HL Questions on each sub-topic
HL Practice ('mock') papers and questions
Printable versions of MC Topic tests
Printable versions of written tasks
(Options from 2014 syllabus)
Complete course for students
Start here
Navigating the site
Using student access
Adding "sticky notes" to any page
Approaches to learning
Thinking skills
Communication skills
Social skills
Self-management skills
Research skills
Reflection skills
Learning to think critically
Full coverage of each topic and sub-topic
S1 Models of the particulate nature of matter
S1.1 Introduction to the particulate nature of matter
Practice questions: S1.1
MC test: S1.1 Particulate nature of matter
Short-answer questions: S1.1 Introduction to the particulate nature of matter
S1.2 The nuclear atom
Practice questions: S1.2
MC test: S1.2 The nuclear atom
Short-answer questions on S1.2 The nuclear atom
S1.2 (AHL) The nuclear atom
Practice questions: S1.2 (AHL)
MC test: S1.2 (AHL) The nuclear atom
Short-answer questions on S1.2 (AHL) The nuclear atom
S1.3 Electron configurations
Practice questions: S1.3
The electron configuration of scandium
MC test: S1.3 Electron configuration
Short-answer questions: S1.3 Electron configurations
S1.3 & S3.1 (AHL) Electron configurations
Practice questions: S1.3 & S3.1 (AHL)
MC test: S1.3 & S3.1 (AHL) Electron configuration
Short-answer questions: S1.3 & S3.1 (AHL) Electron configurations
S1.4 (1) Counting particles by mass: the mole
Practice questions: S1.4 (1)
MC test: S1.4 Counting particles by mass: the mole
Short-answer questions: S1.4 Empirical & molecular formulas
Short-answer questions: S1.4 The mole & Avogadro's constant
S1.4 (2) & R2.1 Concentration & amount of chemical change
Practice questions: S1.4 & R2.1
MC test: S1.4 & R2.1 Concentration & amount of chemical change
Short-answer questions: S1.4 & R2.1 Concentration and amount of chemical change
S1.4 (3) & S1.5 Avogadro's law & ideal gases
Practice questions: S1.4 & S1.5
MC test: S1.4 & S1.5 Avogadro’s law & ideal gases
Short-answer questions: S1.4 & S1.5 Avogadro’s law & ideal gases
S2 Models of bonding & structure
S2.1 The ionic model
Practice questions: S2.1
MC test: S2.1 The ionic model
Short-answer questions: S2.1 The ionic model
S2.1 Data response questions on ionic bonding
S2.1 Data response answers
S2.2 The covalent model (1)
Practice questions: S2.2 (1)
MC test: S2.2 The covalent model (1)
Short-answer questions: S2.2 The covalent model (1)
S2.2 The covalent model (2)
Practice questions: S2.2 (2)
MC test: S2.2 The covalent model (2)
Short-answer questions: S2.2 The covalent model (2)
S2.2 The covalent model (3)
Practice questions: S2.2 (3)
MC test: S2.2 The covalent model (3)
Short-answer questions: S2.2 The covalent model (3)
S2.2 (AHL) The covalent model (1)
Practice questions S2.2 (AHL) (1)
MC test: S2.2 (AHL) The covalent model (1)
Short-answer questions: S2.2 (AHL) The covalent model (1)
S2.2 (AHL) The covalent model (2)
Practice questions S2.2 (AHL) (2)
MC test on S2.2 (AHL) The covalent model (2)
Short-answer questions: S2.2 (AHL) The covalent model (2)
S2.3 The metallic model
Practice questions: S2.3
MC test: S2.3 The metallic model
Short-answer questions: S2.3 The metallic model
S2.4 From models to materials
Practice questions S2.4
MC test: S2.4 From models to materials
Short-answer questions: S2.4 From models to materials
S2.4 (AHL) From models to materials
Practice questions S2.4 (AHL)
MC test: S2.4 (AHL) From models to materials
Short-answer questions: S2.4 (AHL) From models to materials
S3 Classification of matter
S3.1 Periodic table (1) - classification of elements
Practice questions: S3.1 (1)
MC test: S3.1 Periodic table (1) - classification of elements
Short-answer questions: S3.1 Periodic table (1) - classification of elements
S3.1 Periodic table (2) - physical and chemical trends
Practice questions: S3.1(2)
S3.1 Periodic trends quiz
MC test: S3.1 Periodic table (2) - periodicity & trends
Short-answer questions: S3.1 Periodic table (2) - periodicity & trends
S3.1 Periodic table (3) - oxidation states
Practice questions: S3.1(3)- Oxidation states
MC test: S3.1 Periodic table (3) - oxidation states
Short-answer questions: S3.1 Periodic table (3) - oxidation states
S3.1 (AHL) Transition elements
Practice questions: S3.1 (AHL) - Transition elements
MC test: S3.1 (AHL) Transition elements (1) General properties
MC test: S3.1 (AHL) Transition elements (2) - Coloured complexes
Short-answer questions: S3.1 (AHL) Transition elements (1) - general properties
Short-answer questions: S3.1 (AHL) Transition elements (2) - coloured complexes
S3.2 Functional groups - classification of organic compounds
Practice questions: S3.2
MC test: S3.2 Functional groups - classification of organic compounds
Short-answer questions: S3.2 Functional groups (1)
Short-answer questions: S3.2 Functional groups (2)
S3.2 (AHL) Functional groups - stereoisomerism
Practice questions: S3.2 (AHL) Stereoisomerism
MC test: S3.2 (AHL) Stereoisomerism
Short-answer questions: S3.2 (AHL) Functional groups - stereoisomerism
S3.2 (AHL) Mass spectrometry, IR & 1H NMR spectroscopy
Practice questions: S3.2 (AHL) Spectroscopy
MC test: S3.2 (AHL) Mass spectrometry, IR & 1H NMR spectroscopy
S3.2(AHL) Identification from spectra (1)
S3.2(AHL) Identification from spectra (2)
S3.2(AHL) Identification from spectra (3)
S3.2(AHL) Identification from spectra (4)
S3.2(AHL) Identification from spectra (5)
S3.2(AHL) Identification from spectra (6)
S3.2(AHL) Identification from spectra (7)
S3.2(AHL) Identification from spectra (8)
S3.2(AHL) Identification from spectra (9)
S3.2(AHL) Identification from spectra (10)
S3.2(AHL) Identification from spectra (11)
S3.2(AHL) Identification from spectra (12)
S3.2(AHL) Identification from spectra (13)
S3.2(AHL) Identification from spectra (14)
S3.2(AHL) Identification from spectra (15)
S3.2(AHL) Identification from spectra (16)
S3.2(AHL) Identification from spectra (17)
S3.2(AHL) Identification from spectra (18)
S3.2(AHL) Identification from spectra (19)
S3.2(AHL) Identification from spectra (20)
R1 What drives chemical reactions
R1.1 Measuring energy changes
Practice questions: R1.1
MC test: R1.1 Measuring energy changes
Short-answer questions: R1.1 Measuring energy changes
R1.2 Energy cycles in reactions
Practice questions: R1.2
MC test: R1.2 Energy cycles in reactions
Short-answer questions: R1.2 Energy cycles in reactions
R1.2 (AHL) Energy cycles in reactions
Practice questions: R1.2 (AHL)
MC test: R1.2 (AHL) Standard enthalpy changes & Born-Haber cycle
Short-answer questions: R1.2 (AHL) Standard enthalpy changes & Born-Haber cycle
R1.3 Energy from fuels
Practice questions: R1.3
MC test: R1.3 Energy from fuels
Short-answer questions: R1.3 Energy from fuels
R1.4 (AHL) Entropy & spontaneity
Practice questions R1.4 (AHL)
MC test: R1.4 (AHL) Entropy & spontaneity
Short-answer questions: R1.4 (AHL) Entropy & spontaneity
R2 How much, how fast, how far?
R2.1 Amount of chemical change
Practice questions: R2.1
MC test: R2.1 Amount of chemical change
Short-answer questions: R2.1 Amount of chemical change
R2.2 Rate of reaction & collision theory
Practice questions: R2.2
MC test: R2.2 Rate of reaction & collision theory
Short-answer questions: R2.2 Collision theory
Short-answer questions: R2.2 Rate of reaction
R2.2 (AHL) Rate expression & reaction mechanism
Practice questions: R2.2 (AHL) (1)
MC test: R2.2 (AHL) Rate expression & reaction mechanisms
Short-answer questions: R2.2 (AHL) Rate equation
Short-answer questions: R2.2 (AHL) Reaction mechanism
R2.2 (AHL) Activation energy
Practice questions: R2.2 (AHL) (2)
MC test: R2.2 (AHL) Activation energy
Short-answer questions: R2.2 (AHL) Activation energy
R2.3 The extent of chemical change
Practice questions: R2.3
MC test: R2.3 The extent of chemical change - Equilibrium
Short-answer questions: R2.3 The extent of chemical change - Equilibrium
R2.3 (AHL) Reaction quotient & equilibrium law
Practice questions: R2.3 (AHL)
MC test: R2.3 (AHL) Reaction quotient & equilibrium law
Short-answer questions: R2.3 (AHL) Reaction quotient & equilibrium law
R3 What are the mechanisms of chemical change?
R3.1 Brønsted-Lowry acids and bases
Practice questions: R3.1 Brønsted-Lowry
MC test: R3.1 Brønsted-Lowry acids & bases
Short-answer questions: R3.1 Brønsted-Lowry acids and bases
R3.1 The pH scale and Kw
Practice questions: R3.1 pH and Kw
MC test: R3.1 pH scale & Kw
Short-answer questions: R3.1 pH scale & Kw
R3.1 Strong and weak acids and bases
Practice questions: R3.1 Strong and weak acids and bases
MC test: R3.1 Strong and weak acids & bases
Short-answer questions: R3.1 Strong & weak acids & bases
R3.1 Neutralization reactions
Practice questions: R3.1 Neutralization reactions
MC test: R3.1 Neutralization reactions
Short-answer questions: R3.1 Neutralization reactions
R3.1 (AHL) pOH, Ka, Kb, pKa and pKb
Practice questions: R3.1 (AHL) pOH, Ka, Kb, pKa and pKb
MC test: R3.1 (AHL) pOH, Ka, Kb, pKa and pKb
Short-answer questions: R3.1 (AHL) pOH, Ka, Kb, pKa and pKb
R3.1 (AHL) Salt hydrolysis, pH titration curves and acid-base indicators
Practice questions: R3.1 (AHL) Salt hydrolysis, pH titration curves and acid-base indicators
MC test: R3.1 (AHL) Salt hydrolysis, pH curves & indicators
Short-answer questions: R3.1 (AHL) Salt hydrolysis, pH curves & indicators
R3.1 (AHL) Buffer solutions
Practice questions: R3.1 (AHL) Buffer solutions
MC test: R3.1 (AHL) buffer solutions
Short-answer questions: R3.1 (AHL) Buffer solutions
R3.2 Oxidation & reduction
Practice questions: R3.2 Oxidation & reduction
MC test: R3.2 Oxidation & reduction
Short-answer questions: R3.2 Oxidation & reduction
R3.2 Electrochemical cells
Practice questions: R3.2 Electrochemical cells
MC test: R3.2 Electrochemical cells
Short-answer questions: R3.2 Electrochemical cells
R3.2 (AHL) Electrochemical cells
Practice questions: R3.2 (AHL) Electrochemical cells
MC test: (AHL) R3.2 Electrochemical cells
Short-answer questions: R3.2 (AHL) Electrochemical cells (1)
Short-answer questions: R3.2 (AHL) Electrochemical cells (2)
R3.2 Organic redox reactions
Practice questions: R3.2 Organic redox reactions
MC test: R3.2 Organic redox reactions
Short-answer questions: R3.2 Organic redox reactions
R3.3 Electron sharing reactions
Practice questions: R3.3 Electron sharing reactions
MC test: R3.3 Electron sharing reactions
Short-answer questions: R3.3 Electron sharing reactions
R3.4 Electron-pair sharing reactions
Practice questions: R3.4 Electron-pair sharing reactions
MC test: R3.4 Electron-pair sharing reactions
Short-answer questions: R3.4 Electron-pair sharing reactions
R3.4 (AHL) Electron-pair sharing reactions
Practice questions: R3.4 (AHL) Lewis acids & bases
Practice questions: R3.4 (AHL) Nucleophilic substitution
Practice questions: R3.4 (AHL) Electrophilic addition & substitution
MC test: R3.4 (AHL) Lewis acids & bases
MC test: R3.4 (AHL) Nucleophilic substitution
MC test: R3.4 (AHL) Electrophilic addition & substitution
Short-answer questions: R3.4 (AHL) Lewis acids & bases
Short-answer questions: R3.4 (AHL) Nucleophilic substitution
Short-answer questions: R3.4 (AHL) Electrophilic addition & substitution
Making links between topics
Example of connections between topics
Relating Topic S2 to all the other topics
Linking the topics to copper(II) sulfate
Making links between the topics for benzene
Ammonium nitrate & IB chemistry
Dimethyl sulfide and IB chemistry
Hydroxychloroquine and IB chemistry
Covering the skills
Error & uncertainty
Graphing techniques
Managing variables
Significant figures and scientific notation
Use of SI units & prefixes
Understanding & using logarithms
Using sensors & data logging
Using spreadsheets
Practical work (including IA & Collaborative Sciences Project)
'Hands on' practicals
Common chemical reactions
Determining the mass of argon in the room
Formula of magnesium oxide
Determining the Mr of an unknown gas
3-D molecular modelling
Elements & oxides of Period 3
Reactions of halogens & halide ions
Boiling points of mixtures
Preparation of nylon 6,6
Enthalpy changes
Rate-dependent factors
Measuring rate of reaction
Iodination of propanone
Determining Ea for a reaction
Le Chatelier's principle
Determining Kc for an esterification reaction
Acid-alkali titration
Titrations with a pH meter
Determining the pKa of a weak acid
Analysis of aspirin tablets
A green acid-base practical problem
CaCO3 in egg shells
Chlorine in swimming pools
Redox titration with KMnO4
Determination of vitamin C content
Percentage of copper in brass
Analysis of Cu(II) ions in solution
Redox reactions of vanadium
Voltaic cells
Electrolytic cells
Oxidation of ethanol
Reactions of organic compounds
Hydrolysis of halogenoalkanes
Determination of an organic structure
Preparation & purification of aspirin
Preparation of 1,3-dinitrobenzene
Internal assessment (IA)
Gaining the skills for your IA
Choosing the research question
Using secondary data for your IA
Research design
Data analysis
Conclusion
Evaluation
Writing your report
Check list for your IA report
Genuine examples of marked & moderated IA reports
Sample 1: Genuine marked & moderated IA
Sample 2: Genuine marked & moderated IA
Sample 3: Genuine marked & moderated IA
Gaining full marks for a data based IA
A genuine student IA database/simulation report
Collaborative Sciences Project
The Nature of Science
Key terms & concepts
How the elements were named
NOS & Critical Thinking
Nature of Science questions
NOS question - Example 1
NOS question - Example 2
Is IB Diploma chemistry truly international?
The Culture of chemistry
Culture of Chemistry (1)
Culture of Chemistry (2)
Culture of Chemistry (3)
Culture of Chemistry (4)
Culture of Chemistry (5)
Humphry Davy, a chemist and a romantic poet
Incorporating IB chemistry into a real world context
Putting Topic S1 into context (1)
Putting Topic S1 into context (2)
Putting Topic S2 into context
Putting Topic S3 into context (1)
Putting Topic S3 into context (2)
Putting Topic S3 into context (AHL) (3)
Putting Topic R1 into context
Putting Topic R2 into context (1)
Putting Topic R2 into context (2)
Putting Topic R3 into context (1)
Putting Topic R3 into context (2)
Putting Topic R3 into context (3)
External assessment (Exams)
Essential Facts
Objectives and command terms
Grade descriptors
Grade boundaries
Your final grade not good enough for you?
Checklist for the exams
Paper 1
Ten tips for Paper 1
Practice Paper 1 (Section A) exams
SL Practice Paper 1 (Section A) (1)
SL Practice Paper 1 (Section A) (2)
SL Practice Paper 1 (Section A) (3)
HL Practice Paper 1 (Section A) (1)
HL Practice Paper 1 (Section A) (2)
HL Practice Paper 1 (Section A) (3)
Practice Paper 1 (Section B) questions
Data-based question (1)
Data-based question (2)
Data-based question (3)
Data-based question (4)
Data-based question (5)
Data-based (AHL) question (6)
Data-based (AHL) question (7)
Data-based (AHL) question (8)
Data-based (AHL) question (9)
Data-based (AHL) question (10)
Experimental work Question 1
Experimental work Question 2
Experimental work Question 3
Experimental work Question 4
Experimental work Question 5
Experimental work Question 6
Experimental work Question 7
Experimental work Question 8
Experimental work (AHL) question 9
Experimental work (AHL) question 10
Thinking through multiple choice questions
Practice multiple choice questions involving the data booklet
Paper 2
Eleven tips for Paper 2
Areas of difficulty
Applying VSEPR theory
Ionization energy graphs
Misuse of formulas
Understanding the activity series
Understanding & using 'curly arrows' correctly
Understanding and using ΔG
Factors affecting the rate of nucleophilic substitution reactions
Using standard reduction potentials correctly
Understanding hybridization
Practice Paper 2 ('mock') exams
SL Practice Paper 2 (1)
SL Practice Paper 2 (2)
SL Practice Paper 2 (3)
HL Practice Paper 2 (1)
HL Practice Paper 2 (2)
HL Practice Paper 2 (3)
Multiple choice tests for each topic
SL Multiple Choice Questions by topic
S1 Nature of matter, molar amounts and ideal gases (1)
S1 Nature of matter, molar amounts and ideal gases (2)
S1 Nuclear atom & electron configurations
S2 Models of bonding and structure (1)
S2 Models of bonding & structure (2)
S2 Models of bonding & structure (3)
S3 Periodic table
S3 Functional groups - classification of organic compounds
R1 What drives chemical reactions?
R2 The amount of chemical change
R2 Chemical kinetics
R2 Equilibrium
R3 Proton transfer reactions
R3 Electron transfer reactions
R3 Electron & electron-pair sharing reactions
Tools (1)
Tools (2)
HL Multiple Choice Questions by topic
S1 (HL) Nature of matter, molar amounts and ideal gases (1)
S1 (HL) Nature of matter, molar amounts and ideal gases (2)
S1 (HL) Nuclear atom & electron configuration (1)
S1 (HL) Nuclear atom & electron configuration (2)
S2 (HL) Models of bonding & structure (1)
S2 (HL) Models of bonding & structure (2)
S2 (HL) Models of bonding & structure (3)
S3 (HL) Periodicity & transition elements (1)
S3 (HL) Periodicity & transition elements (2)
S3 (HL) Functional groups and stereochemistry
S3 (HL) Spectroscopy
R1 (HL) What drives chemical reactions? (1)
R1 (HL) What drives chemical reactions? (2)
R2 (HL) The amount of chemical change
R2 (HL) Chemical kinetics (1)
R2 (HL) Chemical kinetics (2)
R2 (HL) Equilibrium (1)
R2 (HL) Equilibrium (2)
R3 (HL) Proton transfer reactions (1)
R3 (HL) Proton transfer reactions (2)
R3 (HL) Electron transfer reactions (1)
R3 (HL) Electron transfer reactions (2)
R3 (HL) Electron & electron-pair sharing reactions (1)
R3 (HL) Electron & electron-pair sharing reactions (2)
Tools (HL) (1)
Tools (HL) (2)
Learner profile
Extended Essay (Last assessment 2026)
Preparation
Aims & objectives
Your responsibilities
Choosing the subject
Researching
Choosing the research topic
Framing the Research Question
Researching your Essay
Reflections on planning and progress
Writing the essay
Correct referencing and bibliography
Checklist
Assessment
Grading system
Criterion A
Criterion B
Criterion C
Criterion D
Criterion E
Extended Essay (First assessment 2027)
Preparation
Aims & objectives
Your responsibilities
Choosing the subject
Interdisciplinary Extended Essays
Researching
Choosing the research topic
Framing the Research Question
Researching your Essay
Reflections on progress
Writing the essay
Correct referencing and bibliography
Check list
Assessment
Grading system
Criterion A
Criterion B
Criterion C
Criterion D
Criterion E
Some useful advice
Theory of Knowledge (TOK) & chemistry
The twelve TOK concepts
Why bring TOK into chemistry?
The language of chemistry
IUPAC
A modern paradigm
Emotion and chemistry
Unnecessary concepts in chemistry
How useful are oxidation states?
(Options from previous syllabus)
Option A
Introduction to materials science
MC test: Introduction to materials science
Materials science introduction questions
Materials science introduction answers
Metals and ICP spectroscopy
MC test: Metals & ICP spectroscopy
Metals & ICP spectroscopy questions
Metals & ICP spectroscopy answers
Catalysts
MC test: Catalysts
Catalysts questions
Catalysts answers
Liquid crystals
MC test: Liquid crystals
Liquid crystals questions
Liquid crystals answers
Polymers
MC test: Polymers
Polymers questions
Polymers answers
Nanotechnology
MC test: Nanotechnology
Nanotechnology questions
Nanotechnology answers
Environmental impact - plastics
MC test: Environmental impact - plastics
Environmental impact - plastics questions
Environmental impact - plastics answers
(AHL) Superconducting metals & X-ray crystallography
MC test: Superconducting metals & X-ray crystallography
Superconducting metals & X-ray crystallography questions
Superconducting metals & X-ray crystallography answers
(AHL) Condensation polymers
MC test: Condensation polymers
Condensation polymers questions
Condensation polymers answers
(AHL) Environmental impact - heavy metals
MC test: Environmental impact - heavy metals
Environmental impact - heavy metals questions
Environmental impact - heavy metals answers
Option B
Introduction to biochemistry
MC test: Introduction to biochemistry
Introduction to biochemistry questions
Introduction to biochemistry answers
Proteins & enzymes
MC test: Proteins & enzymes
Proteins & enzymes questions
Proteins & enzymes answers
Lipids
MC test: Lipids
Lipids questions
Lipids answers
Carbohydrates
MC test: Carbohydrates
Carbohydrate questions
Carbohydrate answers
Vitamins
MC test: Vitamins
Vitamins questions
Vitamins answers
Biochemistry & the environment
MC test: Biochemistry & the environment
Biochemistry & the environment questions
Biochemistry & the environment answers
(AHL) Proteins & enzymes
MC test: Proteins & enzymes (AHL)
Proteins & enzymes (HL) questions
Proteins & enzymes (HL) answers
(AHL) Nucleic acids
MC test: Nucleic acids
Nucleic acids questions
Nucleic acids answers
(AHL) Biological pigments
MC test: Biological pigments
Biological pigments questions
Biological pigments answers
(AHL) Stereochemistry in biomolecules
MC test: Stereochemistry in biomolecules
Stereochemistry in biomolecules questions
Stereochemistry in biomolecules answers
Option C
Energy sources
MC test: Energy sources
Energy sources questions
Energy sources answers
Fossil fuels
MC test: Fossil fuels
Fossil fuels questions
Fossil fuels answers
Nuclear fusion & nuclear fission reactions
MC test: Nuclear fusion & nuclear fission reactions
Nuclear fusion & nuclear fission questions
Nuclear fusion & nuclear fission answers
Solar energy
MC test: Solar energy
Solar energy questions
Solar energy answers
Environmental impact - global warming
MC test: Environmental impact – global warming
Environmental impact - global warming questions
Environmental impact - global warming answers
(AHL) Electrochemistry, rechargeable batteries & fuel cells
MC test: Electrochemistry, rechargeable batteries & fuel cells
Electrochemistry, rechargeable batteries & fuel cells questions
Electrochemistry, rechargeable batteries & fuel cells answers
(AHL) Nuclear fusion & fission
MC test: Nuclear fusion & nuclear fission (HL)
Nuclear fusion & fission reactions (HL) questions
Nuclear fusion & fission reactions (HL) answers
(AHL) Photovoltaic cells and DSSCs
MC test: Photovoltaic cells & DSSCs
Photovoltaic cells and DSSCs questions
Photovoltaic cells and DSSCs answers
Option D
Pharmaceutical products & drug action
MC test: Pharmaceutical products & drug action
Pharmaceutical products & drug action questions
Pharmaceutical products & drug action answers
Aspirin & penicillin
MC test: Aspirin & penicillin
Aspirin & penicillin questions
Aspirin & penicillin answers
Opiates
MC test: Opiates
Opiates questions
Opiates answers
pH regulation of the stomach
MC test: pH regulation of the stomach
pH regulation of the stomach questions
pH regulation of the stomach answers
Antiviral medications
MC test: Antiviral medications
Antiviral medications questions
Antiviral medications answers
Environmental impact of some medications
MC test: Environmental impact of some medications
Environmental impact of some medications questions
Environmental impact of some medications answers
(AHL) Taxol - a chiral auxiliary case study
MC test: Taxol - a chiral auxiliary case study
Taxol questions
Taxol answers
(AHL) Nuclear medicine
MC test: Nuclear medicine
Nuclear medicine questions
Nuclear medicine answers
(AHL) Drug detection & analysis
MC test: Drug detection & analysis
Drug detection & analysis questions
Drug detection & analysis answers