Heat is needed. Component composition is important. component colour and product colour is not similar. The process is almost impossible to reverse. The change is chemical. The properties of the component and the product is not similar.
Iron(II) sulphide: FeS. Iron sulphide is a synonym, but the first expression is more correct. Iron(III) sulphide: Fe2S3. Other forms of natural iron sulphides are known: see the link below.
The two possible formulaunits for Iron Sulfide are; FeS, and Fe1S1
iron sulphide is FeS while rust is oxide of iron Fe2O3.
Iron Sulphide
iron oxide
It is Paxton
See the Web Links for "Venderkrogt.net: Antimony" to the bottom for the answer.
iron sulphide, iron(II) sulphide or ferrous sulphide. Iron sulphide is ambiguous however and could refer to any one of a range of iron sulphur compounds,including Fe3S4 and Fe2S3
You can recognize that iron sulfide is not a mixture because it is a compound composed of iron and sulfur atoms chemically bonded in a fixed ratio. Mixtures, on the other hand, are combinations of different substances that are not chemically bonded and can be separated by physical means.
Iron sulfide is a chemical compound formed by iron and sulfur combining. It has unique properties different from its constituent elements, such as a distinct crystal structure, color, and chemical reactivity. Iron is a metal, sulfur is a non-metal, and iron sulfide is considered a compound with its own distinct properties.
Earth's physical properties are:Water,Dust,Rock,Air,and Iron
Iron sulphide is an ionic compound. The Iron is in a +2 oxidation state and the sulphur is in a -2 oxidation state.