The S valence would be -1 when Fe(II) is 2+.
In most cases sulfur has one negative and two possible positive valences: -2 and +4 or +6. So FeS2 is not a possible, or maybe a very rare, compound (Iron(II) persulfide?).
Carbon has a valency of 4, while sulfur has a valency of 6.
the 2 in FeS2 means there are 2 sodium atoms and one iron atom
The valency of sulfur in the sulfite radical is +4. This is because sulfur has a usual oxidation state of +4 in the sulfite ion, which is SO3^2-.
The valency of sulfur in sulfuric acid (H2SO4) is +6. This means that sulfur can form up to 6 chemical bonds with other elements.
The valency of sulfur in hydrogen sulfide is 2. This means that sulfur in hydrogen sulfide forms two bonds with other elements or ions, such as hydrogen in this case.
The valency of sulfur in FeS2 is -2. This is because the overall charge of FeS2 is zero, and iron has a positive valency of +2. Therefore, sulfur must have a valency of -2 to balance the charge.
You don't say that. What you do say is that the valency of sulphur in sulphur trioxide is 6.
Things are complicated if we use the term valency. It is better to use the term Oxidation state or Oxidation Number. In SO2, the oxidation state of sulphur is +4 and In SO3, the oxidation state of sulphur is +6.
Burning sulphur, FeS or FeS2 in air,
Carbon has a valency of 4, while sulfur has a valency of 6.
the 2 in FeS2 means there are 2 sodium atoms and one iron atom
The valency of sulfur in the sulfite radical is +4. This is because sulfur has a usual oxidation state of +4 in the sulfite ion, which is SO3^2-.
You can't extract what ain't there. Why do you think it's called FOOL'S gold? Iron Pyrites = FeS2 = Iron & Sulphur = No gold. Chalcpyrites =Cu2S = Copper & Sulphur ≠ gold.
The valency of sulfur in sulfuric acid (H2SO4) is +6. This means that sulfur can form up to 6 chemical bonds with other elements.
The valency of sulfur in hydrogen sulfide is 2. This means that sulfur in hydrogen sulfide forms two bonds with other elements or ions, such as hydrogen in this case.
The valency of sulfur in ammonium sulfate is 6. This is because each sulfate ion (SO4^2-) contains one sulfur atom with a valency of 6 due to its ability to form 6 covalent bonds by accepting two electrons from each of the four oxygen atoms.
The valency of sulfur in sulfuric acid (H2SO4) is +6. Sulfur forms 4 covalent bonds (with oxygen atoms) and 2 ionic bonds (with hydrogen ions) in the compound.