There are 2.3 moles (because of significant figures)
Answer:
a covalent would be the two that are nonmetals
Gaseous Matter is composed of composed particles that's packed loosely & does not have a defined shape or volume.
They are examples of physical<span> contaminants .</span>
A solid with a unit cell that follows a structure to the face-centered cubic crystal would look like that shown in the attached picture. Thus, the model should consist of 8 balls, one for each corner of the cube. Also, It would need 6 balls, one at each center of the cube's faces. So, the answer is A.