Question

what is formula of rusting​

Answer 1

Answer:

It is estimated that about one-seventh of all iron production goes to replace the metal lost to corrosion. Rust is apparently a hydrated form of iron(III)oxide. The formula is approximately Fe2O3•32H2O, although the exact amount of water is variable.

Answer 2

Chemical formula of rusting is almost the same as that of iron oxide but hydrated . i.e., Fe₂O₃.xH₂O