Stools darkens in color upon exposure due to colorless stercobilinogen which when exposed to air is oxidized to stercobilin
what will happens to a plant exposed to air
basic copper carbonate: CuCO3.Cu(OH)2
Camphor is a sublimable substance, so it sublimes after some time when exposed to air...
Niobium (Nb), or columbium, is a shiny gray metal, but it becomes bluish when exposed to air at room temperature for a period of time. A link to the Wikipedia article on niobium is provided.
it's agressively active to simple air, if exposed, it will burn extremely brightly it's agressively active to simple air, if exposed, it will burn extremely brightly
it is because there exposed to colder air
Yes. Over time, it will get darker with age as it will grow larger and is exposed to more air. women who sunbathe in the nude will have a much darker labia as well. If you need more information on this, ask your gynecologist on your next visit.
It turns into a brownish color
it gradually looses its color.
It would start changing the color of the steel into a brownish color, it becomes rust
Not when it is wet. but will get black if long exposed in air
There exposed to air which causes the figments in the banna to change color due to the difference of air purity
Blue. Your blood is always blue until it is exposed to oxygen, when it reacts and turns red. Since veins aren't exposed to air/oxygen, they remain blue :)
what will happens to a plant exposed to air
A shiny grey which quickly fades into a duller tone when exposed to the air due to its reaction with oxygen.
basic copper carbonate: CuCO3.Cu(OH)2
Calcium tarnishes rapidly when exposed to air.