One Answer

  1. Just imagine that you need to move from Russia to Georgia. You can climb on foot through the Caucasus, search for passable paths for a long time,and it's not a fact that you will be able to walk. This is a reaction without a catalyst. Or you can dig a tunnel and drive back and forth by car. This is the same reaction in the presence of a catalyst. At the same time, the presence of a tunnel does not depend on whether one car has passed through it or a million. The catalyst does not change during the reaction.

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