Helppp plz! Where might you find mountains of metamorphic rock?
A Near volcanoes.
B Buried under bodies of water.
C Near any landscape that has been eroded.
D At the boundaries between tectonic plates.

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.

i wish i could but this one is weird give me abc and i can solve it.