Is respiration physical or chemical change
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Answer:
Carbohydrates (in body) with oxygen (inhaled) become carbon dioxide (exhaled) and water (exhaled and excreated). These are all different chemical substances, so this is a chemical change.
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Other answers
Carbohydrates (in body) with oxygen (inhaled) become carbon dioxide (exhaled) and water (exhaled and excreated). These are all different chemical substances, so this is a chemical change.
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