VisuApps
Chemical reactions and processes in 3D
Apps
A lab figure measures with cylinder, pipette and spatula and adds substances to a beaker above a Bunsen burner. Gas, precipitate, colour change and heat show when a new substance forms, unlike mixing and dilution. Tasks with red cabbage indicator, glowing splint and flame test, a log with reaction equations; without protective equipment the figure refuses hazardous substances.
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3D lab with test tube, beaker or Erlenmeyer flask, burner, thermometer and 17 labelled bottles: click a bottle to pour it. A log records the four signs of a reaction — colour, gas, energy, precipitate — with verdict, chemical equation and hazard pictograms. 17 experiments from precipitation, foam and chemiluminescence to activation energy and flame tests, plus comparisons without a new substance (diluting, dissolving, boiling).
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Disturb the dynamic NO₂/N₂O₄ equilibrium by changing concentration, pressure or temperature. Watch forward and reverse reactions establish a new balance.
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Beaker with two electrodes — H₂ forms at the cathode, O₂ at the anode. Ions, electron flow and gas bubbles live in 3D.
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Explore how a matching substrate binds to an enzyme, splits and releases products while the enzyme remains unchanged. Compare an incompatible substrate.
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Follow adsorption, bond breaking, water formation and desorption on platinum. Switch the surface off to compare collisions without catalytic activity.
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Change temperature and activation energy to see how the fraction of particles able to react changes. Explore why heat and catalysts speed reactions.
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Explore all 118 elements. Switch colour maps between element classes, atomic radius, electronegativity and ionisation energy; inspect shells, configurations and properties.
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Adjust activation and reaction energy, compare exothermic and endothermic reactions, and see how a catalyst lowers the energy barrier without changing reaction energy.
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Add base to an acid and watch the pH curve and indicator. Compare four acid/base strength combinations and their different equivalence-point pH values.
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Explore moving hydrogen and oxygen molecules, collisions and water formation. Adjust temperature and slow time to see bonds break before new ones form.
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Rotate eight molecules and inspect bonding angles and lone pairs. See how electron-pair repulsion shapes molecules from linear to octahedral arrangements.
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A million position measurements drawn from |ψ|² build the orbital dot by dot: s spherical, p dumbbell, d four-lobed. A cross-section reveals the nodal surfaces, the radial distribution compares measurement and theory, and the Bohr orbit sits inside as a thin ring.
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The Krebs cycle as an animated 3D loop — 8 stations, NADH/FADH₂/GTP particles, CO₂ release and energy balance live. With toggleable explanation and formula panels (secondary-school level).
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