A supersonic jet is 2,000 kilometers east of U. S. airspace. If the jet flies at a constant
velocity of 4,000 kilometers per hour to the west, how much time will it take the jet to fly to
U. S. airspace?
Write your answer to the tenths place.
hours

it provides an alternative energy pathway for the reaction to proceed.

a catalyst is a substance that speeds up the rate of a chemical reaction but is not consumed during the course of the reaction.

catalysts increase the rate of reaction without being used up. they do this by lowering the activation energy needed. with a catalyst, more collisions result in a reaction, so the rate of reaction increases. different reactions need different catalysts.

a catalyst works by providing an alternative reaction pathway to the reaction product. the rate of the reaction is increased as this alternative route has a lower activation energy than the reaction route not mediated by the catalyst.