A horse galloped at 40 km/hr, then it began to slow down. The horse slows down at 20km/hr. We know the kinetic energy of the horse (1 BLANK) by a factor of (2BLANK). The relationship between kinetic energy and speed is (3 BLANK). 1 blank: increased , decreased, or stayed the same
2 blank: 2x, 4x, 1/2x, 1/4x
3 blank: directly proportional, linear OR square, nonlinear

i believe it would be the lungs.

i don’t no. suiopgohjk

hammurabi rulers

good lesson

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.