A distinct molecular species that is formed in one step of a reaction mechanism and then reacts in a subsequent step is called

Notice that the oxygen atom produced in the first step of this mechanism is consumed in the second step and therefore does not appear as a product in the overall reaction. Species that are produced in one step and consumed in a subsequent step are called intermediates.

I hope that helps

ps. not my words, my older cousins

one negative thing it that it can kill water animals. another negative thing is it can cause the destruction of ecosystem. one way water pollution can be reduced is to conserve energy.