Answer:
0 kJ/mol.
Explanation:
Hello,
In this case, since the chemical potential can be represented in terms of the Gibbs free energy of formation:

Thus, since the Gibbs free energy of formation of an element is zero, the chemical potential is also zero, or just 0 kJ/mol.
Best regards.
Answer:
A by 0,5 cubic centimeters
Explanation:
If you use the density equation:
→
For A:
![v=\frac{9[g]}{10g/cm^3} =0,9[cm^3]](https://tex.z-dn.net/?f=v%3D%5Cfrac%7B9%5Bg%5D%7D%7B10g%2Fcm%5E3%7D%20%3D0%2C9%5Bcm%5E3%5D)
For B:
![v=\frac{4[g]}{10g/cm^3} =0,4[cm^3]](https://tex.z-dn.net/?f=v%3D%5Cfrac%7B4%5Bg%5D%7D%7B10g%2Fcm%5E3%7D%20%3D0%2C4%5Bcm%5E3%5D)
Doing the difference A-B=0,5 cubic centimeter
<u>True,</u> <em>scientists take all the numbers and </em>
<em>bring them down to a smaller scale.</em>
<em> Or in your case a smaller model.</em>