A cube measuring 2cm on each side weight 5g Calculate it’s density. D=m/V
D=5g/2cm^3
D=2.5g
This is what I did

B. Draw the density column to show where the cube would be in a cylinder with gasoline corn syrup:

7. A block has a mass of 20g and measures 2cmX4cmX2cm, will it sink or float in gasoline?

8. A hollow iron cube has measures 5cm on each side and has a mass of 20g. Will the iron cube float in water?

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.

smooth muscle is composed of involuntary muscles found within the walls of organs and structures such as the esophagus, stomach, intestines, and blood vessels. those muscles push materials like food or blood through organs. unlike skeletal muscle, smooth muscle can never be under your control.