Question

Give reason :- An iron nail kept open in the atmosphere rusts.​

Answer 1

Answer:

Rust of iron is a chemical change as iron rust [Fe2O3χ H20] is a brown flaky powder having a different composition from original iron metal, which is an irreversible change.

Answer 2

Hey mate !!!

When an iron nail is exposed to atmosphere then the iron nail reacts with oxygen , water , moisture ,etc. or we can say iron nail go on Oxidation and it will form Iron oxide .

Thanks ❤️⛈️❤️