The melting of water from ice to liquid is never a chemical reaction.
Chemical reactions
Chemical reactions are reactions that involve the formation of new products from the reactants.
It is as opposed to physical changes in which substances just change their states and can be returned back to the original state with time.
The melting of ice to liquid water is a physical change. The water can be returned back to ice by a process known as freezing.
More on chemical reactions can be found here: https://brainly.com/question/1689737
