You have identified a substance to be solid in nature. which characteristics will justify your identification? definite volume, highest molecular motion, highest kinetic energy indefinite volume, least molecular motion, highest kinetic energy definite volume, least molecular motion, lowest kinetic energy definite volume, no molecular motion, lowest kinetic energy

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.

d.) the average kinetic energy of the gas particles is greater in container b because its particles move faster.