Fe2SO4 for Iron(II) sulfate and Fe2(SO4)3 for Fe(III)sulfate.
If you mean, "What elements make up iron sulphide," then they are Iron and Sulphur. Various 'types' of iron sulphide exist, including FeS (iron (II) sulphide), FeS2 (commonly known as pyrite, iron (II) disulphide or fool's gold), and Fe2S3 (iron (III) sulphide).
iron forms iron sulphide when reacts with sulphur, Fe + S = FeS in this reaction 32 g of sulphur require 56 g of iron so 16 g sulphur requires 28 g of iron.
It is 96% iron (the rest is mostly sulphur etc.).
If you just mix iron and sulphur together, you're still left with a pile of iron and sulphur that are distinctly separate and could be easily separated by throwing the mixture in water (iron sinks, sulphur powder floats). If they were to react together, to become iron sulphide, then they would be chemically bound to each other as a compound and wouldn't be able to be separated by physical means.
Electrons in orbit around an atomic nucleus usually come in pairs, having opposite spin and hence having magnetic poles pointing in opposite directions, resulting in no net magnetism for the atom. Elemental iron has unpaired electrons making it magnetic. When the iron combines with sulphur, electrons from the iron atoms pair with those of sulphur atoms.
you an use a magnet to get the iron fillings out
There is no elemental iron (Fe) involved in this reaction, neither as reactant (iron sulphide -FeS- plus oxygen are) nor as product (iron oxide (FeO) plus sulphur dioxide are)
Iron Sulphide
its the same...... bar the fact that in iron sulphite the 2 chemicals have compouded were as iron and sulphur is still a mixture
iron and sulphur
iron and sulphur
The magnet will attract the iron, but will not attract the sulphur.
iron starts melting
Fed or Iron sulfate
To obtain sulphur from a mixture of sulphur and iron fillings, you can use a magnet to separate the iron fillings from the mixture. Then, you can heat the remaining mixture to sublimate the sulphur, which will turn into a gas and can be collected by condensing it back into a solid form.
The iron and sulphur split because the iron sinks and the sulphur floats so you can separate the mixture
iron and sulphur is an element because there is the tiniest amount of a specific type of atom inside the different chemicals.