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NEED HELP PLZ IM FAILING. Combustion occurs when _____. oxidation reactions are very slow oxidation reactions are so fast the substance catches fire oxygen is removed from another substance machines use chemical energy to do work

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sierrabsamp
combustion will occur when there is not enough oxygen to allow the fuel to react completely to produce carbon dioxide and water.. Hope this helps
Acuteprettygirl

Answer:Combustion occurs when oxidation reactions are so fast the substance catches fire

Explanation:Happy to help :)

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