No. When iron rusts, it becomes iron oxide, or more specifically, iron (II) oxide or iron (III) oxide.
Fe + O --> FeO
iron oxygen iron (II) oxide
The term "rust" technically applies only to iron oxides and its variations, so the element carbon cannot rust.
No.
no because of the carbon dioxide, it is impossible to rust
Yes, mild carbon steels are very prone to rust.
No, graphite does not rust because it is a form of carbon and does not contain iron, which is necessary for rust to form. Graphite is a stable material that is not prone to oxidation like iron or steel.
moss Carbon dioxide
Carbon Dioxside
The cause of iron rust is oxygen and water.
Rust is iron oxide. So when iron oxidizes you get rust. So iron and steel (iron and carbon) are prone to this happening while metal like aluminum well not rust.
Let's call rusting "oxidation," because rust is oxidized iron. Carbon will oxidize, but it takes quite a bit of heat to get it to do so; the easiest way to oxidize carbon is to set it on fire and let it become carbon monoxide and carbon dioxide. Putting carbon in water won't cause the oxidation reaction to happen, because there's not enough heat.
No. It is red because of all the rust and carbon on it's surface: The rust makes it appear red.
If rust is a compound at all, it is an inorganic compound (Fe2O3), because contains has no carbon and is not a derivative of a hydrocarbon.