actually, it becomes darker. the nail will turn a brownish-blackish color.
the iron combines with oxygen, forming iron III oxide, or Fe2O3
The most obvious one is when it rusts. Rust is the oxidization of iron.
Chemical change, oxygen binds with iron.
it rusts faster when it is damp cause the moisture of the damp and oxygen when they meet they create rust
The iron nail, in wet conditions, will eventually rust completely away. * * * * * But if you collect all the rusted particles that fall away, then there will be an increase in mass.
When metal rusts by forming a solid metal oxide with oxygen from air, the rusted solid metal weighs more.
lighter
The plural of rust is rusts. As in "a nail left in the open rusts easily".
a nail rusts
because its a chemical reaction
a penny
No. Iron rusts but it is not biodegradable.
a nail rusts
iron oxide
Salt water.
A nail rusts through a process known as oxidation.
As the rust expands the nail will get slightly bigger then reach a point when starts to disintergrate.