All of the lab stations in a science classroom have electrical outlets in themWhich design would be best if there were an emergency where the electricity needed to be shut off to the stations ?

clouds form

solid ice forms on leaves.

water droplets form on grass.

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.

c (diamond),

sio2 (quartz)