Reaction Energy Lab

Instructions

Explore how energy moves during reactions and phase changes.

  1. Choose a mode and adjust the inputs.
  2. Use the diagram and Data table to explain the energy change.
  3. Try a challenge, then press Check.
  4. Copy or download your data. Switching language starts fresh with the same settings.

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Follow the energy. Build a model, make a prediction, then check your reasoning.

Data table

About this activity

Build energy diagrams for reactions and phase changes. Calculate reaction enthalpy from bond energies, enthalpies of formation and Hess's law.

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