I just submitted a lab report for a TLC experiment, but I just realized that I completely forgot to include the "reactions" section. It's too late to save that grade, but for future reference, how would one go about writing out a chemical equation for a TLC experiment? I had always understood solubility to be a purely physical property, meaning that no real reaction would take place. Similarly, polar attractions (or lack thereof) between molecules do not count as reactions either, so what would one put down in such a situation? Anything? In this lab, we were given an unknown mixture of two analgesic drugs and asked to identify them based on our TLC testing of four known drugs, aspirin, acetaminophen, caffeine, and phenacetin, using a mixture of hexane, ethyl acetate, and acetic acid as the solvent. We used silica-coated plates. Any guidance would be much appreciated.