It is a heterogenous mixture, not a pure substance. Felix Ferrow
No, tree bark is not a pure substance. It is a complex mixture of various compounds such as cellulose, lignin, tannins, and oils.
An element is a substance that contains only one kind of atom, characterized by a specific number of protons in its nucleus. Each element has unique chemical properties based on the number of protons in its atoms.
Elements can not be broken down.
Only if you have pure water in mind, then: 50 milliliters of pure water weigh 50 grams
Steels (there are many different kinds) are alloys, or mixtures, of many components. Steels are normally made mainly of Iron (a basic element, Fe) and other components such as Chromium, Molybdenum, Carbon, etc., etc. In many Stainless Steels iron is not the main alloy.
A rock is a complex mixture of compounds, not a pure substance.
It is a pure substance, because it has other compounds to it.
It is a pure substance, because it has other compounds to it.
Rock salt contains all the minerals found in the seawater from which it formed. These will be many, but NaCl will be the main one.
Limestone is not a pure substance. It is a sedimentary rock composed of various minerals such as calcite, aragonite, and dolomite. These minerals can vary in composition and impurities, making limestone a heterogeneous mixture rather than a pure substance.
pure substance, propanone
Geavel is not pure, it is an undescriptable mixture of unknown composition
Granite is a rock, a non-homogeneous mixture of minerals.
Pure substance
it is a pure substance.... not
Methane is a pure substance.
pure substance