A. Covalent bonds is the answer
<span>The
density of an object is defined to be its mass divided by the volume it
occupies. For this problem, the mass of the cube was given to be 25 g while its
volume is 125 cm</span>³. Thus, we simply divide 25 g by 125 cm³ to get the object’s density. We then calculate that the cube has a density of
0.2 g/ cm³.
Mass:20g
Mole=20/[2(23)+16]
=0.32 mil
SI Unit
I'm not 100% sure but I think that's right. Hope I helped you in any way.
