Question: A _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ is the material that facilitates the reaction of

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is the material that facilitates the reaction of oxygen and hydrogen. It is usually made of platinum powder very thinly coated onto carbon paper or cloth. It is rough and porous so that the maximum surface area of the platinum can be exposed to the hydrogen or oxygen.

Group of answer choices

reformer

catalyst

proton exchange membrane

electrolyte

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