The compound FEL3S does not exist. But Fe2S3 is iron(III) sulfide, also known as "ferric sulfide" or "iron sesquisulfide". It's a gray brittle solid commonly found in nature as the mineral greigite.
H2S is known as hydrogen sulfide.
The chemical formula of the ionic compound formed from cadmium (Cd) and sulfur (S) is CdS, and its name is cadmium sulfide.
The empirical formula for the ionic compound formed by Fe and S is Fe2S3, because iron (Fe) typically forms ions with a +3 charge, and sulfur (S) typically forms ions with a -2 charge. This results in a compound with a 2:3 ratio of Fe to S atoms.
The name for SnS2 ionic compound is tin (IV) sulfide. It is formed when the tin ion (Sn^4+) combines with the sulfide ion (S^2-).
The ionic compound formed by sodium (Na) and sulfur (S) is sodium sulfide with the chemical formula Na2S.
The compound name for Dierbium trisulfide is erbium(III) sulfide. It consists of two erbium (Er) atoms and three sulfide (S) ions, indicating the oxidation state of erbium is +3. The chemical formula for this compound is Er2S3.
H2S is known as hydrogen sulfide.
It sounds very much like some kind of clerical or court "shorthand" which may mean something to that particular court but has no universal meaning outside that court system. It can be assumed that the "FEL" probably means "felony" but what the "S" might stand for is anybody's guess.
The chemical formula of the ionic compound formed from cadmium (Cd) and sulfur (S) is CdS, and its name is cadmium sulfide.
Cadmium sulfide It is a compound of Cadmium (Cd) and Sulphur (S).
The empirical formula for the ionic compound formed by Fe and S is Fe2S3, because iron (Fe) typically forms ions with a +3 charge, and sulfur (S) typically forms ions with a -2 charge. This results in a compound with a 2:3 ratio of Fe to S atoms.
The compound M₂S is named "metal sulfide," where "M" represents a metal. The specific name will depend on the identity of the metal; for example, if M is lithium (Li), the compound would be called lithium sulfide (Li₂S). Each metal will have its own distinct name when paired with sulfur in this formula.
The compound Fe₂S₃ is called iron(III) sulfide. It consists of iron in the +3 oxidation state and sulfide ions. This compound is typically formed in reactions involving iron and sulfur at high temperatures.
The name of the compound with this formula is "magnesium sulfide".
The name for SnS2 ionic compound is tin (IV) sulfide. It is formed when the tin ion (Sn^4+) combines with the sulfide ion (S^2-).
The ionic compound formed by sodium (Na) and sulfur (S) is sodium sulfide with the chemical formula Na2S.
The ionic compound formed between aluminum (Al) and sulfur (S) is called aluminum sulfide. Its chemical formula is Al2S3.