The reaction between oxygen and organic material is a/an _____________ reaction?
Correct answer: A. Exothermic
- A. Exothermic
- B. Endothermic
- C. Biochemical
- D. Photochemical
Explanation
Combustion is the oxidation of organic material by oxygen, and it releases heat because the products are at a lower energy level than the reactants. Therefore, it is exothermic rather than endothermic.
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