Oxidation of food substances in body cells is a physical or a chemical change?
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Answer:
Oxidation of food substance is a chemical change.
On a molecular level, chemical reactions take place, which means that the atoms in molecules or compounds are rearranged to create the end products. One type of chemical change is oxidation.
In oxidation-reduction processes, also known as redox reactions, oxidation occurs as a component. A transfer of electrons occurs during these reactions. Oxidation happens when electrons are lost, and reduction happens when electrons are added. Reduction also occurs when oxidation does. The oxidation of iron, which produces iron oxide, popularly known as rust, is an illustration of a redox reaction. The following equation can be used to represent this reaction: Forming Fe2O3 is 2Fe + 3O2. This reaction is a chemical change because, as you can see, the iron atoms and oxygen molecules combine to create a new substance.
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