what doo you mean by chemical changes. answer more than 2 people
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A chemical change happens when one chemical substance is transformed into one or more different substances, such as when iron becomes rust. ... A chemical change is different from a physical change, which doesn't rearrange atoms or molecules and produce a completely new substance.
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Those changes which are irreversible are called chemical changes.
When Chemical changes takes place , always new substances with new properties forms.
eg. Digestion of food is chemical change because it is irreversible and complex substances such as carbohydrates changes into glucose .So, here are the new properties of glucose that are totally different than those of carbohydrates.
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