Yes, it is the compound Sulfur trioxide.
Hint: If it has a chemical formula (with no + or - at the end) it is a pure substance.
it is a pure substance.... not
Methane is a pure substance.
pure substance
CH3COOH is a pure substance. It is the chemical formula for acetic acid.
Refined substance can be a pure substance depending on the type of sugar used. If the refined sugar is white, then it is a pure substance. If it the refined sugar is brown, then it is not a pure substance.
pure substance, propanone
it is a pure substance.... not
Pure substance
Methane is a pure substance.
pure substance
pure substance
Pure Substance
A pure substance is classified by having a definite and constant composition. The substance can be either an element or a compound, but what makes the substance pure, is that it does not vary.
Sulfur trioxide is a compound with a chemical formula SO3, consisting of sulfur and oxygen atoms. It is a homogeneous substance because it is a pure compound with uniform composition throughout.
Neon is a pure substance. Elements and compounds are pure substances; mixtures are not.
CH3COOH is a pure substance. It is the chemical formula for acetic acid.
Refined substance can be a pure substance depending on the type of sugar used. If the refined sugar is white, then it is a pure substance. If it the refined sugar is brown, then it is not a pure substance.