Collision theory sim
CaCO₃ + 2HCl → CaCl₂ + H₂O + CO₂.
Collision theory · covers the GCSE, IGCSE, O-Level topic
What the sim shows
Close up of the dashed box, where the acid meets the marble.
Use it in your lessons
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More chemistry sims
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- Conservation of mass simWeigh three reactions on a 0.01 g balance: a precipitate in a flask, marble fizzing in acid with the bung in or out, and magnesium burning in a crucible; plot mass against time and explain each change.
- Empirical formula of magnesium oxide simBurn magnesium ribbon in a lidded crucible, weigh to constant mass and work out the formula MgO from your own readings.
- Filtration, evaporation and crystallisation simStir, filter and then evaporate or crystallise to get salt or copper(II) sulfate back out of a mixture with sand, and see how much you recover.
- Flame tests and the spectroscope simClean a nichrome loop in acid, dip it in a solid, hold it in a roaring blue flame, record the colour, name the metal ion and match its line spectrum.
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