A sample of pure silver has a mass of 11.5 g. Calculate the number of moles in the sample and silver atoms in the sample. HINT (a) moles in the sample moles (b) silver atoms in the sample atoms

h let me think

i just learnt this recently but i need to look through my notes again

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.

since electrons are negative the answer is neagtaive