What of the following statements is true about catalysts? a. catalysts slow down the rate of chemical reactions b. all catalysts are enzymes c. catalysts are used up during a chemical reaction d. catalysts lower the activation energy of a chemical reaction

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❀ Basically the answer is D

❀ They lower the activation energy and speed up the Rate of reaction without being used up themselves

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➽ ℐsobel

velocity and height

some of your causes might be acidic rain or natural wildfires that cause the parks to be degraded

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