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Saturday, April 26, 2008

CATALYSIS

a modification and especially increase in the rate of a chemical reaction induced by material unchanged chemically at the end of the reaction

is a phenomena in which a relatively small amount of material augments the rate of reaction without itself being consumed

the chemical or biological process whereby the presence of an external compound, a catalyst, serves as an agent to cause a chemical reaction to occur or to improve reaction performance without altering the external compound

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