Question

What is rust. What is the chemical formula for rust. Two methods of preventing rust.

Answer 1

Answer:

Rusting is the slow oxidation of iron by atmospheric oxygen in the presence of water. Equation: 4Fe+3O2+2xH2O→2Fe2O3.

Explanation:

Method To prevent Rust :

1) Oiling

2) Colouring

Answer 2

Answer:

The chemical formula for rust is Fe2O3. Rust is formed when iron reacts with oxygen in moist air. The following chemical equation represents the reaction: 4Fe + 3O2 → 2Fe2O3.