Consider the following step of a reaction mechanism.
A+B___>D+E (slow)
Which statement identifies a reaction intermediate?
A, if it is used in a later step
B, if it is produced in an earlier step
D, if it is used in an earlier step
E, if it is produced in a later step

b, if it produced in an earlier step

Explanation:

i got it right :) hope this helps!!

it is called acid bonding

the ozone layer acts as a filter for the shorter wavelength and highly hazardous ultraviolet radiation (uvr) from the sun, protecting life on earth from its potentially harmful effects. when the sky is clear, there is an inverse relationship between stratospheric ozone and solar uvr measured at the earth's surface.