JCERJournal of Contemporary Educational Research2208-84662208-8474Bio-Byword Scientific Publishing Pty. Ltd.10.26689/jcer.v1i1.208Articlehttps://artdesignp.com/journal/JCER/1/1/10.26689/jcer.v1i1.208KongLingwei2020112020-12-30When a chemical change occurs, the atoms of the reactants are regrouped into new substances, and the species, number and quality of the atoms do not change, so the matter does not die.