I really need help on my science test. ;-;

B. electrical

Explanation:

Radiant energy is a form of electromagnetic energy. It can take the form of visible waves – which is what we call light energy – or invisible waves such as radio waves or x-rays. As the charges that cause the energy are moving, electrical energy is a form of kinetic energy.

a covalent bond, specfically triple bond

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.