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Answer :

Raduoprea160go

Because an amount of the said substance emits a specific amount of heat.

In food usually calories are measured per 100 grams.

For biomolecules calories are measured per 1g (e.g. 1g glucose=4.1kcal)

Gabby18221go
We calculate calories per gram instead because the amout of a certain substance emits a limited amount of heat.✅

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