Gel Electrophoresis
Discover more about gel electrophoresis and how it is used in DNA fragment analysis.
Science
Titration pH Curves
How does pH change when various acids are mixed with an alkali? Take a look here!
Titration pH Curves (Advanced)
Learn more about buffers, calculations, pH and pKa here.
Buffer Solutions
Discover more about buffers – both acidic and alkaline – here!
Acid Base Equilibria Quiz
How well do you know your pH, pOH, pKa, pKb & pKw?
Asexual & Sexual Reproduction
Under what environmental circumstances is each favoured?
Solubility Rules
Do you know which salts are soluble and which, insoluble?
Menstrual Cycle
What roles do these hormones (oestrogen, progesterone, follicle stimulating hormone & luteinising hormone) play?
Salt Preparation
Which method is suitable for preparing a given salt? Find out here!
Continuous & Discontinuous Variations
What are their key differences? What are some examples of each?
Punnett Squares
Learn more about how to calculate the probability of inheriting traits here.
Qualitative Analysis Lab
How can you identify cations, anions and gases?
Colours of Chemicals
Challenge your knowledge on the colours of chemicals!
Group 17 Halogens
What are some trends in physical and chemical properties of Group 17 Halogens?
Reactivity Series of Metals
How can the reactivity of a metal affect the chemical changes it undergoes?
Rusting
What is rust? Which factors cause rusting and which accelerates it?
Oxidation States Quiz
How quickly can you calculate oxidation states? Test yourself here!
Oxidation Numbers Mega Quiz
Test your speed in selecting the correct oxidation numbers!
Oxidising & Reducing Reagents
What colour changes are observed when an oxidising agent meets a reducing agent?
Ionic Equations
Learn to write and combine half-equations in neutral, acidic and basic conditions.
Ideal Gases & Real Gases
What are ideal gases and real gases? How do they differ?
Rate of Reactions
What are some factors affecting the rate of reactions? Check them out here!
Boltzmann Distribution
How are different temperatures and activation energies represented on Maxwell-Boltzmann distribution curves?
Order of Reactions
Learn more about zero, first, second & pseudo-first order reactions.
Catalysis
What are homogeneous catalysts, heterogeneous catalysts and autocatalysts?
Le Chatelier’s Principle
How does a system at equilibrium respond to a change?
Haber Process
Learn more about chemical equilibria by studying the Haber Process!
Energy Profile Diagrams
Learn more about exothermic and endothermic reactions through this interactive simulation!
Energetics Challenge
How energetic are you when attempting this energetics quiz?
Gibbs Free Energy
What’s the relationship between the change in Gibbs Free Energy and the spontaneity of a reaction?
Electrolysis Experiments
Observe the movement of ions as various substances undergo electrolysis!
Electrolysis Lab
What are the factors affecting selective discharge during electrolysis?
Electrolysis Explorer
Explore the preferential discharge of ions in various electrolytic setups!
Blood Types
Find out more about the different blood types and how they are affected by various parental genotypes!
Homologous Series
How well do you know the homologous series of alkanes, alkenes, alcohols & carboxylic acids?
Organic Compounds Naming Contest
How fast can you name your alkanes, alkenes, alcohols, carboxylic acids and esters?
Types of Isomerism
How much do you know about chain isomerism, positional isomerism, functional group isomerism, cis-trans isomerism and optical isomerism?
Functional Group Isomerism
What is functional group isomerism? Find out more here!
Positional Isomerism
Find as many positional isomers as quickly as you can!
Enantiomers
Learn more about enantiomers as well as the chiral centres they possess.
Natural Selection
Discover what natural selection is and how it can be affected by deforestation and pollution.
Natural Selection of Peppered Moths
Imagine yourself as a bird. What kind of selective pressure would you exert on peppered moths in polluted and unpolluted environments?
σ & π bonds
How do various hybridised orbitals in methane, ethene, ethyne and propadiene look like?
Benzene & Phenol
Learn more about benzene, phenol and their delocalised π electrons.
Mechanism: Electrophilic Addition
How does the electrophilic addition of H-Br to ethene happen?
Mechanism: SN2
How much do you know about the SN2 mechanism? Is there a complete inversion of stereochemistry?
Mechanism: E2
Which conformation (anti-periplanar, left, or syn-periplanar, right) is favoured by the E2 mechanism?
Line of Best Fit
Do you know how to draw a line of best fit?