a student is given a sample of an unknown liquid to test. The student thinks that the liquid is water. Which of the following physical properties of the sample is most helpful to determine if the liquid is water?

3

explanation:

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 need mutiple choices

i think it's c. if you look search electronic symbol on google and then click on wiki it shows you a