The O is a symbol for the element oxygen.
pure substance
Oxygen is an element and a pure substance.
Neither. Oxygen is an element, which is a pure substance and not a mixture.
substance because you can write it as a formula
yes, oxygen is an example of a pure substance.a pure substance is made up of one kind of matter and it cannot be broken down into smaller parts.
Oxygen is a pure substance. In nature, free oxygen exists as a molecule of two oxygen atoms covalently bonded, O2.
Oxygen is an element, which is a pure substance.
Oxygen is an element indicating that is a pure substance.
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.
Oxygen is a chemical element.
oxygen is an example of a pure substance because a pure substance is made up of one kind of matter and it cannot be broken down into smaller parts.
O2 is in fact a very pure substance. O2 is a pure substance because it's only atoms are oxygen atoms.