At least some reactions happen. But the educational value is dubious since "bug" phenomenon out number reactions. Helium doesnt escape from an open cup, nor does anything else. Theres nothing like heat conduction or thermodynamics: mixtures have separate and bizarrely unrelated temperatures for each component. Worse, its hard to derive any principals of chemistry other than discovering a list of pre-programmed reactions by trial and error. This conveys a sense of chemistry being about route memorizations rather than understanding. The app runs painfully slow, lagging severely with even a modest setup.
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