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PHeT - Reaction & Rates
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Legacy PHeT sim
Science and Engineering Practices
Use a model to provide mechanistic accounts of phenomena.
Disciplinary Core Ideas
Chemical processes, their rates, and whether or not energy is stored or released can be understood in terms of the collisions of molecules and the rearrangements of atoms into new molecules, with consequent changes in the sum of all bond energies in the set of molecules that are matched by changes in kinetic energy.