What is rust? Give its chemical formula.

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Solution

Rust is a hydrated form of iron oxide with the formula ${Fe}_{2} O_{3} . {xH}_{2} O$ .
Definition of rust
Rust is a hydrated form of iron oxide. Rust is a flaky reddish-brown coating that forms on metal. Two components oxygen and water are required for the formation of rust.
Formula of rust
The formula for rust is $Fe subscript 2 O subscript 3 point xH subscript 2 O$
Therefore, rust refers to iron oxide in its oxidized form having the chemical formula $Fe subscript 2 O subscript 3 point xH subscript 2 O$ .

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F e_{2} O_{3}

Chemical formula of rust.

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