Answers

2016-06-23T20:54:34+08:00
Chemical change is any change that results in the formation of new chemical substances. At the molecular level, chemical change involves making or breaking of bonds between atoms. 
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2016-06-24T06:01:18+08:00
Chemical change is a change that involves the reaction of one or more substances,referred as reactants to form one or more different substance known as products.
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