Copper (Cu) is the element that turns green when exposed to moist air.
Iron oxides account for the red tint to soil .
iron is one anything that can be oxidized will rust
Lime water turns milky or cloudy when exposed to oxygen. This is due to the formation of calcium carbonate as the lime water reacts with carbon dioxide in the air.
When sodium is exposed to air, it reacts with oxygen and moisture to form sodium oxide and sodium hydroxide on its surface. These compounds have a different optical property compared to the shiny metallic sodium, resulting in the white appearance of the surface over time.
Phosphorus is an element that can exhibit spontaneous combustion when exposed to oxygen. This occurs because phosphorus ignites spontaneously in air due to its high reactivity, leading to combustion without an external ignition source.
Blood in the body is blue, when exposed to air it turns red.AnswerBlood may be thought of as a possible answer; however, blood is not actually blue. See related answer below.
Strontium is a soft silver-white or yellowish metallic element that is highly reactive chemically. The metal turns yellow when exposed to air.
Aloe vera turns white when exposed to air due to a process called oxidation, which causes the plant's enzymes to break down and change color.
Radium Eyes by Count Zero MeaningIts a love song about two lovers separated by war (its set during the Philippene War) and hes talking about her eyes either being the color of Radium (the element) in its pure form (when it hasn't been exposed to air) , which is almost pure white , or when its been exposed to air, in which it turns black
It turns into a brownish color
Iron oxides account for the red tint to soil .
Phosphorus (15)
it is a silver substance.and has grayish white when exposed to air.
When liquid CO2 is exposed to air, it quickly evaporates and turns into gaseous CO2. This process is known as sublimation. The gaseous CO2 will mix with the air in its surroundings.
Iodine
iron is one anything that can be oxidized will rust
Oxygen is the element in the air that is needed for coal dust to burn. When coal dust is exposed to oxygen and heat, it can ignite and burn.