Iron is oxidized and rusting appear.
what will happens to a plant exposed to air
Fe2O3
Iron oxide (ferric oxide)
It depends on the quality of the nail. If it is painted it Amy take long to rust. In general it may take a month or so for the nail to rust.
Stainless steel is an alloy of iron, chromium, carbon and nickel. It never rust and hence,maintains its lustre. Whereas, the iron exposed in moist air rusts. It is covered with reddish substance and loses its lustre. And hence stainless steel has more lustre than iron.
It is more resistant to corrosion.
The iron may form a new mineral that is like rust.
It easily becomes rusty.
what will happens to a plant exposed to air
If an iron nail is exposed to air for a long time it reacts with the water vapour (moisture) and oxygen present in the atmosphere and a reddish-brown powdery coating is formed on it known as RUST (Fe2O3.xH2O) .
Fe2O3
Copper (Cu) is the element that turns green when exposed to moist air.
It stays the same
The moist cloth will start to cool
Calcium tarnishes rapidly when exposed to air.
what will happens to a plant exposed to air
iron