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What is a substance called that is used to speed up a chemical reaction but is not consumed as part of the reaction?
- A Reactant
- B Product
- C Catalyst
- D None of the above
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A catalyst is a substance that is used to speed up a chemical reaction without being consumed or permanently changed in the process. It works by providing an alternative pathway for the reaction to occur with lower activation energy, allowing the reaction to proceed more quickly. Unlike reactants and products, which are directly involved in the reaction and are consumed or produced, a catalyst remains unchanged and can be used again in subsequent reactions.