15)A catalyst is a substance which
Itself undergoes a permanent chemical change
Alters the Gibb's energy of reaction
Catalysis non-spontaneous reactions
Increases the rate of reaction.
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Catalysis (/kəˈtæləsɪs/) is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst (/ˈkætəlɪst/). Catalysts are not consumed in the reaction and remain unchanged after it. Often only very small amounts of catalyst are required.
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