When an ice cube melts, what does it become?

1 Answer

It doesn't really become anything, it simply changes state and we call it water.


The chemical formula for ice is #"H"_2"O"# and the chemical formula for water is also #"H"_2"O"#.

They are the same compound, but the molecules in ice are locked into a pattern whereas the molecules in water have more energy and can move freely, making it a liquid.