The tree bark is a mixture.
No, tree bark is not a pure substance. It is a complex mixture of various compounds such as cellulose, lignin, tannins, and oils.
Trees are a very complex mixture of organic compounds.
pure substance, propanone
Maple syrup is a pure substance. It is made from the sap of the maple tree. The sap is slowly boiled down to soft ball stage and then bottled. Nothing is added except maple sap.
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.