chromium can be pure or it can be in its natural state
Sodium (Na) is a pure substance, listed on the Periodic Table. Table salt however, is Sodium Chloride (NaCl), which is not a pure substance
CaCl2 is a pure substance. It is a compound made of calcium and chlorine in a fixed ratio.
Ethanol is a pure substance, but it is rare to encounter it pure. Laboratory alcohol usually contains small amounts of water and methanol. Alcoholic drinks contain large quantities of water, as well as flavourings.
Potassium is a metallic element and a member of the Alkali Metal group, it has the symbol K which is derived from its old name of Kalium.
Neither. C2H2 is a compound (pure substance) so it is not a mixture at all. Hint: mixtures don't have chemical formulas.
Chromium (Cr, element #24) is a pure substance. Elements and compounds are pure substances.
Chromium is a pure substance. It is a naturally occurring element with a specific atomic structure and chemical composition. It is not composed of different types of atoms or molecules, which is a characteristic of pure substances.
No; steel is an iron-carbon alloy. Stainless steel is an alloy of steel with chromium added. Stainless steel is usually 13-25% chromium (by weight).
Yes.
pure substance, propanone
Steel is an alloy- which is a compound, or intermixture. So it is not an element or pure substance.
Pure substance
it is a pure substance.... not
Methane is a pure substance.
pure substance
pure substance
Pure Substance