chlorine gas
it turns yellow in colour
Calcium tarnishes rapidly when exposed to air.
it evaporates
Tarnish.
When carbon is exposed to air nothing happens.
it gradually looses its color.
it turns yellow in colour
Anything left exposed to air in the freezer will freezer burn
If the skin of the burned area is unbroken and it is not likely to be further irritated by pressure or friction, the burn should be left exposed to the air to promote healing.
It dries out. Mould spores can land on it and grow.
what will happens to a plant exposed to air
Calcium tarnishes rapidly when exposed to air.
No nonmetals don't change chemically when they are exposed to air! ;)
It will dry out over time as long as it is uncovered, if it is covered it will get moldy
Camphor is a sublimable substance, so it sublimes after some time when exposed to air...
no. because once it is exposed to air it will automatically die.
The silver exposed to air combines with oxygen in the air to form silver oxide which is black.