this post was submitted on 01 Jul 2023
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Because the rust is very fluffy, while the iron is very dense. So a very small volume of iron can turn into a large volume of rust.
The iron is disappearing though. Just slowly. You could tell if you weighed it with a sensitive scale.
Just want to add, that rust is not pure iron oxide(? can't do chemistry in english) but also contains water molecules
Really? I suppose rust is stranger than I even thought.