chemical change vs chemical reaction

Other hyponyms of chemical change 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.