Which of these is NOT an example of acceleration? A) moving at 20 m/s in a circle
B) speeding up from 5 m/s to 10 m/s
C) slowing down from 10 km/h to km/h
D) moving at a constant speed of 150 km/h
ps this is scienc T^T

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.

it's filtration, but this is an assumption so my apologies if i got this