What is happening when the reactants begin to react? select the two correct statements. [a] + [b] decrease slowly [a] + [b] decrease rapidly [a] + [b] remain constant [cd] decrease slowly [cd] increases slowly [cd] increases rapidly

[A] + [B] decrease rapidly.

[CD] increases rapidly.

Explanation:

A + B → CD,

The reaction proceeds that A reacts with B and their concentration decreases to produce CD that its concentration increases with time.

At the beginning of the reaction; the concentration of A + B decreases rapidly and the concentration of CD increases rapidly.

Kindly, see the attached image.

[A] + [B] decrease rapidly.

[CD] increases rapidly.

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.