Cinnabar is not a pure substance because it is a mineral composed of Mercury sulfide and may contain impurities or other elements mixed in its crystalline structure. This impurity affects the chemical composition of cinnabar, making it a mineral rather than 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.
No, a sugar solution is not a pure substance because it is a mixture of sugar (solute) dissolved in water (solvent). A pure substance is a substance that is made up of only one type of atom or molecule.
pure substance, propanone
Pure substance
it is a pure substance.... not
Methane is a pure substance.
Mercury is a "pure substance" in the sense that is an naturally occuring element on the Periodic Table. However, it can combine with some other elements in nature and so may not be found in its pure form. cinnabar (HgS) is a common form. That's 1 Mercury atom + 1 Sulfur atom.
pure substance
Pure Substance
pure substance
Filtering
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.