5 L = 6.0 * 10^10
I believe.
Answer: 0.5 g/cm^3
Density equals mass divided by volume so..
60/120 is 0.5 g/cm^3
Answer
thus, 4 moles of oxygen gas (O2) would have a mass of 128 g.
Since they can still be unstable...nuetral atoms have the same amount of protons to electrons but to be stable they need to fill up there outer shell by gaining or losing electrons
