Rust is a mixture of:
Fe2O3 and Fe (OH)3
FeO and Fe (OH)
Fe3O4 and Fe (OH)3
Fe2O3 and Fe (OH)2
On corrosion ferric hydroxide (Fe (OH)3) is formed and it forms rust Fe2O3.xH2O.
18g of steam is passed over 2g of Iron.H2O + Fe → H2 + Fe2O3 Which is the excessive reagent? [Fe = 55.85g]