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Why digesting and breathing is a …

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Why digesting and breathing is a chemical change?

Posted by Sarthak Dhir Samanta 6 years, 2 months ago

CBSE > Class 07 > Science

1 answers

.. ... 6 years, 2 months ago

Digestion of a food is considered as a chemical change as various chemical reactions take place while digestion of food. Moreover, as chemical changes are irreversible change so it is known as chemical change. Hope this helps you friend Respiration is a form of oxidation. Glucose is oxidised to CO2 and H2O (along with release of energy) at the cells by the oxygen from air we breathe in. C6H12O6 + 6 O2 = 6 CO2 + 6 H2O Since glucose is converted into new products with different composition, respiration is a chemical change.

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