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If you are talking about the gas we breath in the air, it's a compound. Pure oxygen as a gas exists as a molecule. Oxygen as an element, is unstable and as far as I know doesn't exist as a single element in nature. It will always occur in combination with something else, such as H2O or O2.
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Is helium gas a pure substance as an element or a compound?
It is an element.
Can an pure element be an compound?
No. An element is a pure substance made of only one kind of atom. A compound is a pure substance made of two or more kinds of atom.
Is sulfur a pure compound?
It is a pure element, though if you are talking about sulfur in its natural form (S8), then yes it is a pure compound.
Is F2 a compound or a pure substance?
F2 (fluorine) is an element and thus a pure substance. However a compound is a pure substance as well.
Is sodium a pure substance or a compound?
Sodium is an element on the periodic table, and is NOT a compound.
Is pure water a mixture or a compound or an element?
Pure water is a compound.
Is pure air an element compound solution or heterogeneous?
The pure nitrogen is a chemical element, gaseous at room temperature.
What makes an element vs a compound homo or hetero?
A pure element or a pure compound are homogeneous.
Is pure gold compound or element?
Pure gold is an element. (AU)
Is californium found as a pure element or as a compound?
Californium is a pure element.
Is hydrogen found as a pure element in nature or as a compound?
pure element
Is plutonium a pure element or compound?
Plutonium is a pure chemical element.
Is copper a compound element?
No, it is a pure element
Is a mirror a compound or an element or a mixture?
A pure substance is either an element or a compound.
Is pure gold a compound a mixture a element or a solution?
Pure gold is an element.
Is steel an element compound pure substance or mixture?
Steel is an alloy- which is a compound, or intermixture. So it is not an element or pure substance.
Is liquid bromine an element or compound?
pure element
