Because no new substance is produced
During boiling the chemical composition is not changed.
Water boiling is a physical change and not a chemical reaction. In a physical reaction there is no new substance formed as is the case with chemical reactions. In boiling water there is no new substance produced.
When a kettle is boiling you are able to see the chemical reaction, from the stem leaving the kettle.
No, boiling is not always a sign of a chemical reaction.
Water boiling is a physical process; also dissolving. Rusting is a chemical process (oxidation).
chemical
No, boiling water is a physical change, not a chemical reaction. The process involves increasing the temperature of water until it reaches its boiling point, causing the water molecules to gain enough energy to change from liquid to gas (steam).
There is a chemical reaction happening between the lentils and the water.
no, boiling is a physical change
it's a reversible change
no it is the molecules in the water moving fast and bumping into each other
all of them