Water wells are important for
A) reaching groundwater in the water table
B) storing groundwater for future use
C) turning non-potable water into potable water
D) melting freshwater trapped in glaciers
E) purifying water
pls help!!!

A

Explanation:

A) reaching groundwater in the water table

number of molecules / avogadro's number * molecule molecular = mass

explanation:

we define a gram-molecular weight as the mass of one mole of any element or compound. a mole contains avogadro's number of units (molecules) –  

6.022

x

10

23

. so, dividing the number of molecules by avogadro's number gives us the number of moles. multiplying that by the molecular weight gives us the mass. from the periodic table we find the gram-molecular weight of u to be238 and of f to be19. so,  

u

f

6

will have a gram-molecular weight of 352g.