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Iron sulfide. Iron sulfide is the chemical compound FeS, a black solid. It is made of iron and sulfide ions. FeS has iron in its +2 oxidation state. It reacts with acids such as hydrochloric acid to make hydrogen sulfide gas. In plural, "iron sulfides" may refer to a range of chemical compounds composed of iron and sulfur.
Writing Formulas & Names of Compounds Learn with flashcards, games, ... What is the correct formula for iron(III) sulfide? A) Fe2S2 B) Fe2S C) FeS D) FeS2 E) Fe2S3.
Iron sulfide Hydrogen sulfide formed, which smells of rotten eggs The atoms in a compound are chemically joined together by strong forces called bonds close bond The chemical link that holds ...
Iron(II,III) sulfide is a blue-black (sometimes pinkish) chemical compound of iron and sulfur with formula Fe 3 S 4 or FeS·Fe 2 S 3, which is much similar to iron(II,III) oxide. It occurs naturally as the sulfide mineral greigite and is magnetic.
Molecular formula: The expression of a compound in terms of symbols of the elements and the number of atoms present is called the molecular formula of the compound. Explanation: In the Iron (III) sulphide, the valency of iron F e is given as 3 and sulphide S is divalent having valency 2. Hence, the molecular formula of the compound is Fe 2 S 3.
In this task, we need to write a formula for iron (II) sulfide. It contains a metal iron, and a nonmetal sulfur so it's an ionic compound. We can differ between two types of ionic compounds: type I ionic compounds - metals forms only a single type of cations. Group 1A and 2A metals, silver, aluminum, and zinc always form type I ionic compounds.
Sodium chloride is an ionic compound made up of sodium ions and chloride ions in a crystal lattice. Image credit: Wikipedia Commons, public domain. Atoms are electrically neutral because the number of protons, which carry a 1+ charge, in the nucleus of an atom is equal to the number of electrons, which carry a 1- charge, in the atom.
