What is the chemical formula of rust, which is formed on ...
What is the chemical formula of rust, which is formed on the surface of iron in the presence of oxygen and moisture?
Fe3O4
FeO
Fe(OH)3
Fe2O3
Correct answer is D
Rust is a reddish-brown compound that forms on the surface of iron in the presence of oxygen and moisture. Its chemical formula is Fe2O3, indicating the presence of two iron atoms and three oxygen atoms in the compound.
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