Answer: it would be distributed uniformly.
Explanation:
charge carriers in conductors are free to move around and that charge on a conductor spreads itself out on the surface of the conductor.
When the two conducting spheres are brought together to touch, it is as though they become one single big conductor and the total charge of the two spheres spreads out across the whole surface of the touching spheres. When the spheres are moved apart again, each one is left with half of the total original charge.
