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5 August, 03:25

What visual evidence shows that combustion reactions release energy?

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Answers (2)
  1. 5 August, 03:51
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    Answer: Fire.

    Explanation: Combustion reactions combust. Through combustion, they release heat and light energy in the form of fire.
  2. 5 August, 05:11
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    A combustion reaction is a major class of chemical reactions, commonly referred to as "burning." In the most general sense, combustion involves a reaction between any combustible material and an oxidizer to form an oxidized product. It usually occurs when a hydrocarbon reacts with oxygen to produce carbon dioxide and water. Good signs that you're dealing with a combustion reaction include the presence of oxygen as a reactant and carbon dioxide, water, and heat as products. Inorganic combustion reactions might not form all of those products but remain recognizable by the reaction of oxygen.
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