Rust forms when metals containing iron mix with the oxygen in the air or the water and create a compound named iron oxide. This compoumd has water molecules, so we call it a hydrated compound. Chemically and very simply speaking, iron atoms lose a few electrons to oxygen atoms. This process, where electrons are lost from atoms, is the oxidation process. When oxidation occurs it produces a chemical reaction that creates iron oxide
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Metal rusts because of a chemical reaction between oxygen and metal. This chemical reaction can be sped up in water.
The oxygen and water vapour react, salt speeds this up. Have you ever seen any bridges that rust? That is because they tower over salt water.
Oxygen+Water vapour->rust
When Iron and Oxygen mix. This happens easier in water than air because air is only about 27% oxygen and water is around 33% oxygen.
Rust is an iron oxide, the product of a oxidation-reduction (redox) reaction between iron and oxygen in the presence of water or air moisture.
'Rust' is the everyday name for Iron Oxide (Fe2O3).
It forms when iron is in contact with both air and water.
corrosion
IRON OXIDE.......AKA RUST!
Rust (in its "regular" red form) is an iron oxide called iron(III) oxide. It's formula is Fe2O3, and we call it ferric oxide or hematite. And that's different from iron (II) oxide FeO, or iron (II,III) oxide Fe3O4. There are three basic forms of oxidized iron, and there they are. Wikipedia has more information, and a link to their post is provided below. Rust is basically ferric oxide caused by the action of air, or to be more precise, the action of oxygen and water droplets on iron.
Rust is Iron Oxide which has accumlated on top of the iron. The top layer of the iron, when exposed to moisture or water, reacts with the oxygen in the air to form rust. Rust can also form when Iron is exposed to a strong oxidizer or acids. But rust is not a chemical property of iron, it's in fact a completely different compound which used to be iron before reacting with oxygen.
Sort of. First off rubbing alcohol doesn't have to be all alcohol, it can be some water in it too, and water can promote rust. Next thing rubbing alcohol can remove a possibly protective layer of grease, which can make metal rust faster.