Sure. A steel frame that begins to rust will be undergoing a chemical change.
A chemical change for a bicycle frame would involve a reaction that changes the composition of the material making up the frame. For example, if the frame undergoes rusting due to exposure to oxygen and moisture, this would be a chemical change as the iron in the frame reacts with oxygen to form iron oxide.
That'd be a chemical change, as steel/iron turns into iron oxide. Usually called rusting, or corroding.
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
It's not the rusty bike it's the rusting of the bike. rust forms in a process called oxidation, or when iron comes in contact with oxygen. Also one reason you can tell it's a chemical change is when you can't reverse the process. Or when it involves changing the chemical compound.
Rust (oxidation of metal) is a chemical change but it is also a physical change in the strength of the material.
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.
Rusting is a chemical change, as steel/iron turns into iron oxide.
Rust (oxidation of metal) is a chemical change but it is also a physical change in the strength of the material.
first physical, second chemical
Yes, the rusting of a bicycle is a chemical change because it involves the oxidation of the iron in the metal to form iron oxide (rust), which is a different chemical compound than the original metal. This process is irreversible.