Is respiration a chemical change? How?
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Is respiration a chemical change? How?
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Yes, respiration is a chemical change.
• Oxygen is taken during the respiration,the output should be also the oxygen in order to make it a physical change.
• But,the output is carbon dioxide which is completely different from the oxygen. That's why it is considered as a chemical reaction where the initial compound is oxygen and final compound is carbon dioxide.
• In the respiration process,heat is also generated that's why it is an exothermic chemical reaction