a physical becauseb it does not effect the chemical make up
Physical -- liquid to gas.
Boiling of ANY liquid is always physical.
Physical change
the change is easily reversed so it is a physical change not a chemical change
Steam from a kettle is a physical change.
Materials can come in three phases, depending on physical conditions. They are gas, liquid, and solid. If you boil a kettle of water, you are first heating up the liquid water inside the kettle. But then at boiling temperature (which is about 100 deg C or 212 deg F) the liquid in the kettle starts to turn into gas, which we call steam. As a gas, that steam rises to the surface and that's when you start to see the bubbles we call boiling. So when we "boil a kettle" we are creating steam that creates the boiling bubbles.
There are 4 evidences of a chemical reaction : -Change of colour. -Formation of precipitate. -Release of energy. -Effervescence.
It is a chemical change because when copper tarnishes, it combines with oxygen to become a new substance. You can also tell because of the change of color, a sign of chemical change.
No.
When a kettle is boiling you are able to see the chemical reaction, from the stem leaving the kettle.
When a tea kettle whistles, it is because the liquid inside turns to steam and is forced by pressure through the small opening in the kettle lid. This phase change is a physical change, not a chemical one.
the change is easily reversed so it is a physical change not a chemical change
Steam from a kettle is a physical change.
No. the hissing and steaming is simply the Physical Change of water boiling, and the steam causes an increase in pressure thus the whistle. During a Physical Change, some properties of material change, but the composition of the material does not change.
Materials can come in three phases, depending on physical conditions. They are gas, liquid, and solid. If you boil a kettle of water, you are first heating up the liquid water inside the kettle. But then at boiling temperature (which is about 100 deg C or 212 deg F) the liquid in the kettle starts to turn into gas, which we call steam. As a gas, that steam rises to the surface and that's when you start to see the bubbles we call boiling. So when we "boil a kettle" we are creating steam that creates the boiling bubbles.
It's physical. It just changes from state of matter to another one.
It's physical. It just changes from state of matter to another one.
Its a chemical reaction :]
Boiling water out of a kettle can be used for boiling noodles for soup or spaghetti.
If you're referring to the residue left in the kettle after the boiling of water. It is known as calcium carbonate. The chemical equation is CaCO3. Hopes This Helps