¿Qué masa de óxido resulta necesaria para obtener 3.150
g de ácido nítrico? ¿cuántos
moles de agua reaccionan?
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they both have a y in them

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.

c. 4.54 x 10–12 j happens to be correct