Chemistry

Run reactions you can pause and rewind: change temperature and concentration, titrate an acid, build a battery, and separate a mixture.

15 live simulators

Screenshot of Atom Lab
Live

Atom Lab

Build atoms by adding protons, neutrons and electrons, and see how the element, charge and isotope change.

Physics · Atomic & Nuclear, Atomic Structure

Class 9–10 · Class 11–12Class 9 Science: Structure of the Atom; Class 11 Chemistry: Structure of Atom

Launch simulator: Atom Lab
Screenshot of Gas Laws
LiveIntermediate

Gas Laws

Squeeze, heat and fill a gas-filled piston, hold one quantity constant, and see Boyle's, Charles's and Gay-Lussac's laws emerge from bouncing particles.

Physics · Heat & Gases

Class 11–12Class 11 Physics: Kinetic Theory (gas laws)

Launch simulator: Gas Laws
Screenshot of Reaction Rates
LiveIntermediate

Reaction Rates

Run a reaction A + B → C, change temperature, concentration and activation energy, and compare particle collisions with the rate law and Arrhenius equation.

Chemistry · Kinetics & Equilibrium

Class 11–12Class 12 Chemistry: Chemical Kinetics

Launch simulator: Reaction Rates
Screenshot of Chemical Equilibrium
LiveIntermediate

Chemical Equilibrium

Run a reversible reaction A ⇌ B to equilibrium, then add reactant, remove product or change temperature, and watch Le Chatelier's principle at work.

Chemistry · Kinetics & Equilibrium

Class 11–12Class 11 Chemistry: Equilibrium

Launch simulator: Chemical Equilibrium
Screenshot of Acid–Base Titration
LiveIntermediate

Acid–Base Titration

Add base from a burette to an acid, graph the pH curve, and identify the equivalence point, buffer region and a suitable indicator.

Chemistry · Acids & Bases

Class 9–10 · Class 11–12Class 10 Science: Acids, Bases and Salts; Class 11 Chemistry: Equilibrium (ionic)

Launch simulator: Acid–Base Titration
Screenshot of Molecular Diffusion
LiveBeginner

Molecular Diffusion

Release two gases on either side of a barrier, change temperature and particle count, and compare mixing with random-walk displacement statistics.

Chemistry · Thermochemistry & Mixtures

Class 6–8 · Class 9–10Class 9 Science: Matter in Our Surroundings (diffusion)

Launch simulator: Molecular Diffusion
Screenshot of Electrochemical Cell
LiveIntermediate

Electrochemical Cell

Build a galvanic cell from two half-cells, see which electrode is the anode, follow electron and ion flow, and calculate the cell voltage with the Nernst equation.

Chemistry · Electrochemistry

Class 11–12Class 12 Chemistry: Electrochemistry

Launch simulator: Electrochemical Cell
Screenshot of Chromatography
LiveBeginner

Chromatography

Spot a mixture on a strip, change each dye's affinity and the solvent flow, and watch components separate by retention factor.

Chemistry · Separation

Class 6–8 · Class 9–10 · Class 11–12Class 6 Science: separating substances; Class 11 Chemistry: methods of purification

Launch simulator: Chromatography
Screenshot of Radioactive Decay
LiveBeginner

Radioactive Decay

Watch a sample of unstable nuclei decay at random, change half-life and starting count, and compare the stochastic count with the exponential expectation.

Physics · Atomic & Nuclear

Class 11–12 · College & beyondClass 12 Physics: Nuclei

Launch simulator: Radioactive Decay
Screenshot of Calorimetry
LiveBeginner

Calorimetry

Drop a hot metal into water in an insulated cup, change masses, materials and temperatures, and solve the energy balance for the final temperature.

Chemistry · Thermochemistry & Mixtures

Class 11–12Class 11 Physics: Thermal Properties of Matter; Class 11 Chemistry: Thermodynamics

Launch simulator: Calorimetry
Screenshot of Solubility
LiveBeginner

Solubility

Dissolve salts in water, change temperature and amount, and see when a solution becomes saturated and excess solid remains or crystallises out.

Chemistry · Thermochemistry & Mixtures

Class 9–10 · Class 11–12Class 9 Science: Is Matter Around Us Pure (solutions); Class 12 Chemistry: Solutions

Launch simulator: Solubility
Screenshot of Phase Diagram
LiveIntermediate

Phase Diagram

Move a sample of water or carbon dioxide around its pressure–temperature phase diagram and see where it is solid, liquid, gas or supercritical.

Chemistry · Thermochemistry & Mixtures

Class 11–12 · College & beyondExtends Class 9 states of matter; phase diagrams are college level

Launch simulator: Phase Diagram
Screenshot of Enzyme Kinetics
LiveAdvanced

Enzyme Kinetics

Change substrate concentration, Vmax, Km and inhibitor type, and read reaction velocity curves and Lineweaver–Burk plots.

Biology · Cells & Physiology

Class 11–12 · College & beyondClass 11 Biology: Biomolecules (enzymes)

Launch simulator: Enzyme Kinetics
Screenshot of Osmosis
LiveIntermediate

Osmosis

Separate two solutions with a semi-permeable membrane, change concentrations and permeability, and watch net water movement and osmotic pressure.

Biology · Cells & Physiology

Class 9–10 · Class 11–12Class 9 Science: The Fundamental Unit of Life (osmosis); Class 12 Chemistry: Solutions (osmotic pressure)

Launch simulator: Osmosis
Screenshot of Carbon Cycle
LiveIntermediate

Carbon Cycle

Run a four-reservoir carbon cycle box model from 1850 to 2200, change future emissions and exchange rates, and track atmospheric CO₂ and where the emitted carbon goes.

Earth & Environment · Climate & Carbon

Class 11–12 · College & beyondClass 11 Geography: World Climate and Climate Change

Launch simulator: Carbon Cycle

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