Answer:
They put the container back on the scale and find that the mass is showing a higher value.
Explanation:
The density value of liquid water is greater than the density value of solid water (ice). For this reason, when the ice melted the mass value of the container (with liquid water inside) increased.
The water molecule is formed by two hydrogen atoms and one oxygen atom in an angular geometry. Since the oxygen atom is more electronegative than hydrogen, a negative partial charge on the oxygen atom forms and positive partial charges on the hydrogen atoms.
In liquid water, although there is some orientation of water molecules they have mobility. When there is a passage from the liquid state to the solid state, what we call the crystalline lattice is formed, ie an organized structure in which these molecules no longer have the free movement of before.
By forming this crystalline lattice, the spacing between the water molecules increases. If in a given mass there are a number of molecules, and if the space between these molecules increases, then the density decreases. Thus, ice is less dense than water, so the ice-containing container has a lower mass value than the water-containing container.
