I don't know what are the molecular reasons that two substance will form another substance.
Why oxygen molecules can form to ozone molecules? Why hydrogen and oxygen makes water? What are the physical foundations for it? Is it possible to explain it with quantum mechanics?
EDIT: There are models for chemical reactions in terms of continuum mechanics (it is called "Mixture Theory"). But I don't understand Mixture Theory!
I know basics of continuum mechanics, but NO continuum mechanics of mixtures which can react with each other. Can someone explain this pdf: