An element.
Yes, oxygen is a pure chemical element. It exists in nature in its elemental form as a diatomic molecule (O2). It is a colorless, odorless gas.
Pure iron is rarely found in its pure form in nature because it readily reacts with oxygen to form iron oxide (rust). However, iron can be purified through industrial processes to obtain pure iron for various applications.
It depends on what you mean by the pure form of Oxygen. Air is about 20% Oxygen. It comes as a molecule of two atoms of oxygen tied together. The chemical formula is O₂ but a single oxygen would be O. A single oxygen molecule does not exist in nature.
Oxygen is a pure substance. In nature, free oxygen exists as a molecule of two oxygen atoms covalently bonded, O2.
Oxygen is a diatomic and is O2 if found in nature. It is a gas.
Is oxygen a form of mixture form, compound form, or mixture form
They are highly reactive.
Phosphorus us found in nature, but in the form of phosphate compounds rather than in pure elemental form. This is because phosphorus is highly reactive and will readily react with oxygen in the air.
Mixture, because it is mixed with all sorts of chemicals, such as smog, and or pollen.Mixture is NOT a pure substance, because to be a pure substance, it can't be mixed with anything.
Neither. Oxygen is an element, which is a pure substance and not a mixture.
Calcium is rarely found in its pure form in nature because it readily reacts with other elements to form compounds. It is most commonly found in the form of calcium carbonate in minerals such as limestone and marble.
No. Generally in form of phosphate in nature.