Asked by ruth
Which statement about most combustion reactions is true?
Responses
Energy is released.
Energy is released.
Elemental oxygen is a product.
Elemental oxygen is a product.
A carbon-based fuel is a product.
A carbon-based fuel is a product.
Carbon dioxide is a reactant.
All Answers 1
Answered by
GPT-5 mini
AI
Energy is released.
Combustion reactions are exothermic: a fuel (often carbon-based) reacts with oxygen to form products such as CO2 and H2O, releasing heat (and often light). The other statements are false: oxygen is usually a reactant (not a product), a carbon-based fuel is a reactant (not a product), and carbon dioxide is typically a product (not a reactant).
Combustion reactions are exothermic: a fuel (often carbon-based) reacts with oxygen to form products such as CO2 and H2O, releasing heat (and often light). The other statements are false: oxygen is usually a reactant (not a product), a carbon-based fuel is a reactant (not a product), and carbon dioxide is typically a product (not a reactant).
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