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#1: What is usually released in a combustion reaction?

A. energy

B. elemental oxygen

C. a carbon-based fuel

D. elemental carbon

**my answer; A. energy

is that right?,

Respuesta :

W0lf93
A combustion reaction is when a substance reacts with oxygen and releases energy in the form of light and heat. A combustion reaction will always includes a hydrocarbon and oxygen as the reactants and always produces carbon dioxide and water as products. Therefore your answer of A is correct.

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