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A catalyst is ____. The product of a combustion reaction Not used up in a reaction One of the reactants in single-replacement reactions A solid product of a reaction. Please Help!
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A catalyst is ____.

The product of a combustion reaction
Not used up in a reaction
One of the reactants in single-replacement reactions
A solid product of a reaction.

Please Help!

User Friggle
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It is not used up in a reaction. This is because a catalyst is added to a reaction in order to speed it up, but only for that—it doesn’t react with anything, so it isn’t a product nor reactant of any reaction
User Baard
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