Homogeneous:
denoting a process involving substances in the same phase (solid, liquid, or gaseous).
Herogeneous:
of or denoting a process involving substances in different phases (solid, liquid, or gaseous).
I think it’s 2 hope that helped
A.
Physical change
Step by step explanation;:)
The mass of nucleons (and thus of the nucleus) is roughly 1000 times greater than that of electrons.