Which change is chemical?(1 point) Responses water evaporating: liquid water becoming gaseous water water evaporating: liquid water becoming gaseous water water boiling: solid water becoming gaseous water water boiling: solid water becoming gaseous water water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules water freezing: liquid water becoming solid water

1 answer

The change that is a chemical change is "water undergoing electrolysis: liquid water becoming oxygen and hydrogen molecules." This process involves breaking chemical bonds in water molecules to produce new substances (oxygen and hydrogen), which is characteristic of a chemical change. The other processes listed (evaporation, boiling, and freezing) are physical changes, as they do not alter the chemical composition of the water.