a 500.ml aqueous solution of na3po4 (molarmass=164g/mol) was prepared using 82gof the solute. what is the molarity of na3po4 in the resulting solution?

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.

answer : a model is often used to explain and make things easier to understand when any scientific topic needs to be demonstrated and explained.

as in this case where a scientist wants to use a model to present the results of his detailed scientific investigation. he should do it as it will him to make the audience understand the concept in a much better way. also, it can be changed according to new scientific understandings.

it forms an anion that has a larger radius. anions have a negative charge and are larger than the original atom.

the answer is c.the valence of the atoms combine .