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Chemistry 15 Online
OpenStudy (anonymous):

when burning wood where does the energy that ends up as heat comes from?

OpenStudy (unklerhaukus):

chemical bonds

OpenStudy (chmvijay):

it comes from converting the Cellulose or lignin present in wood get into carbon dioxide and Water which is a exothermic reaction :) it is oxidation reaction :)this goes in presence of Oxygen :)

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