draw the structures of the precursors to 2,2-dibromohexane given the reagents below. do not add any inorganic side products; only show the main organic species.

indium, and thallium have three electrons i think

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.

i believe the answer is 5,000