Because in a chemical compound is a chemical bond between the elements.
From a mixture of iron and sulfur iron can be separated with a magnet.
element
Iron is a chemical element; sand may be a compound or a mixture.
compoundIf the iron fillings are pure, they contain only one type of atom (all the atoms have the same number of protons). Thus, the filings would be a sample of the element iron. If the filings are rusty, then they would contain compounds (iron oxides).
pure substance
Iron filings and sulfur together form a mixture, not a compound. A compound is a substance formed by the chemical combination of two or more elements in a fixed ratio, while a mixture is a combination of two or more substances that are not chemically bonded and can be separated by physical means.
Iron sulfide
Iron filings are not an element. Iron filings are small pieces of iron that have been cut or shaved from a larger piece of iron. Iron itself is an element, with the chemical symbol Fe and atomic number 26.
When iron filings and sulfur powder are heated together, they undergo a chemical reaction to form iron sulfide. The iron sulfide produced is a compound that has different physical and chemical properties compared to iron or sulfur alone.
Iron filings are considered macroscopic because they can be seen with the naked eye and are large enough to be handled and observed without the aid of a microscope. However, they are composed of microscopic particles of iron. Thus, while the individual particles are microscopic, the collection of iron filings as a whole is classified as macroscopic.
A substance that cannot be separated physically is called a pure substance. This is because pure substances are made up of only one type of element or compound, and their composition is uniform throughout.
yes. using a magnet, you can separate iron from any non-ferromagnetic compound
Iron filings just means metallic iron, shredded into little bits. It's an element, not a mixture.