What is the chemical formula of rust, which is formed on the surface of iron in the presence of oxygen and moisture?
- Fe\(_3\)O\(_4\)
- FeO
- Fe(OH)3
-
Fe\(_2\)O\(_3\)
The correct answer is: D
Explanation
Rust is a reddish-brown compound that forms on the surface of iron in the presence of oxygen and moisture. Its chemical formula is Fe\(_2\)O\(_3\), indicating the presence of two iron atoms and three oxygen atoms in the compound.
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