10 points!

2.what type of weather is in store for miami within the next 12 hours? explain your answer :

3.in a hypothetical city such as gotham city, the temperature is dropping and the skies are clearing. how would the barameter be changing? answer :

4.on another day in gothem city, the temperature is dropping and the skies are clearing. how would the barometer be changing? answer

true                                                                                                       true true true true true true

the contamination

we are putting to many trash.

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.