Rust (oxidation of metal) is a chemical change but it is also a physical change in the strength of the material.
physical change
physical change
first physical, second chemical
Rust (oxidation of metal) is a chemical change but it is also a physical change in the strength of the material.
Rust (oxidation of metal) is a chemical change but it is also a physical change in the strength of the material.
Rusting is a chemical change, as steel/iron turns into iron oxide.
Chemical - It's the iron atoms reacting with the oxygen atoms in the air. For future reference, a chemical change is irreversible, whereas a physical change can be reversed, usually quite easily.
Ah, what a lovely question. When a bicycle rusts, it's actually a chemical change taking place. The metal is reacting with oxygen and moisture in the air, creating a new substance called iron oxide. It's all part of nature's way of transforming things, just like how we transform a blank canvas into a beautiful painting.
Chemical, as rust is iron oxide. The iron is turning from iron to iron oxide, which (as you can see) is a chemical change. In general, a colour change usually indicates a chemical change.
A physical change
no
Physical change of the paint, not the door.