A pure substance is an element or a compound.
its not a mixture because i had a test on it and it said it was a pure substance.
pure substance, propanone
Pure substance
it is a pure substance.... not
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.
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.
Selenium is a chemical element. It can be said to be a pure substance; there is nothing else found in it.