What caused southern Sudan to rebel against northern Sudan? desire to control oil reserves

dislike of the nation’s federal system of government

fear that northern Sudan would establish an Arabic and Islamic state

need for foreign aid that northern Sudan refused to accept

its actually B forgive me for my mess up there

Explanation:

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.