A combustion reaction is a ____ in which a substance reacts with ____ gas, releasing energy in the form of ____ and ____ in the form of ____. ____ reactions must involve oxygen as one ____. The combustion of hydrogen gas produces ____ vapor. The rate or ____ at which the reactants combine is ____, in part because of the nature of the chemical reaction itself and in part because more energy is generated than can ____ into the surroundings with the result that the ____ of the reactants is ____ to accelerate the reaction even ____.

Me5a Sci Geo Combustion Reactions

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