if theres a container with water and ice at 0 degrees (c) what will happen if u put or take energy from water

Answer 1

Its called equilibrium.
A long as there's both ice and water, the
temperature stays at 0 Deg. C.
It takes energy to melt ice.
When water freezes energy is released.
If you add energy, it is taken up by melting
some of the ice.
If you take out energy, it is made up by
freezing more water.