Consider this reaction: Mg + 2HCI – MgCl2 + H2 2.0 moles of Mg and 5.0 moles of HCl react to form 1.5 mol of H2.
What is the percent yield of this reaction?
%

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.

it is reliable if two scientists recorded it