I am not riding
no
physical change
physical change
The best method to prevent rusting when storing Bicycles is to store the Bicycle in a Shed or Garage, away from Weather and the Elements. If you have to store the Bike outdoors, you can buy a Tarp that will provide insulation and protection from Rain.
first physical, second chemical
The rusting of a bicycle left in the rain is a form of chemical weathering. When the metal in the bicycle reacts with oxygen and water, it forms iron oxide, which is rust.
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.
To keep moving parts moving with minimum resistance, and to prevent exposed metal parts from rusting.
To keep moving parts moving with minimum resistance, and to prevent exposed metal parts from rusting.
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.
That'd be a chemical change, as steel/iron turns into iron oxide. Usually called rusting, or corroding.