The rusting of a metal chair is a chemical change. The iron is undergoing oxidation as it combines with oxygen to form iron oxide.
Physical change
No, it is a chemical change. The metal oxide formed is a new substance.
chemical change
Physical Change, the metal has the same chemical structure and only the shape of the bar has changed
It is a physical change because only its shape changed, not its chemical composition.
Physical change
Corrosion is a chemical change
No, it is a chemical change. The metal oxide formed is a new substance.
chemical change
Vaporization is a physical change.
A metal Surface being ground is a physical change, not a chemical change.
Physical Change, the metal has the same chemical structure and only the shape of the bar has changed
Physical. The properties of the metal do not change, and it can be undented.
It is a physical change because you are changing the shape of the metal.
Of itself a metal can not be "shortened". However, a metal OBJECT such as a piece of metal wire can be shortened by cutting a piece off. This would be a physical change.
Metal rusting (corrosion) is a chemical change.
It is a physical change because only its shape changed, not its chemical composition.