chemical action vs chemical reaction

Other hyponyms of chemical action include acylation, agglutinating activity, agglutination, amylolysis, association, blueing, bluing, calcification, catalysis, contact action, chelation, reaction, chlorination, cleavage, corroding, corrosion, erosion, cracking, deamination, deaminization, decalcification, decarboxylation, de-iodination, demineralisation, demineralization, desalination, desalinisation, desalinization, digestion, dissociation, gasification, gassing, hydrogenation, intumescence, intumescency, swelling, inversion, iodination, chemical mechanism, mechanism, nitrification, peptisation, peptization, photosynthesis, polymerisation, polymerization, precipitation, proteolysis, pyrochemical process, pyrochemistry, sequestration, synaeresis, syneresis, synthesis, transamination, transamination, ferment, fermentation, fermenting, zymolysis, zymosis.