(3) the water to the ice cubes
This is so because the ice cubes are colder compared to their surrounding objects.
They absorb the heat from the water, cooling it, therefore vanishing(melting).
Another way to put it would be
The answer is (3) the water to ice cubes.
As the ice cubes should be at a temperature of about 0 degree ( freezing point) , at the same time the temperature of water is 24 degree. Thus, heat is transferred from water to ice cubes.
INTERmolecular forces (such as dipoles and London dispersion forces).
The actually compound isn't changing (it's still H2O in solid or liquid form), so INTRAmolecular bonds aren't being affected. It's just the strength of attraction between separate molecules that is weakening.
Answer: 4 1/6
Explanation: 3/5x1 1/9=2/3. 2/3+3 1/2=4 1/6.
Atomic number should be the answer