Select all that apply. the density of an object is 0.950 g/cm3. it will float in which of the following materials? water, density = 1.00 g/cm3 olive oil, density = 0.920 g/cm3 ethyl alcohol, density = 0.789 g/cm3 citric acid, density = 1.660 g/cm3

The object will float in water and citric acid.

Explanation:

The object will float, if it is less dense than the substance it is placed in.

The object will sink, if it is more dense than the substance it is placed in.

So, the object will float in water and citric acid.

output?

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.