the difference is that the formula does not have the same categories as the chemical compound does
Because as a rule only a chemical compound has a chemical formula; a mixture contain two or many componds and each compound has a different chemical formula.
The chemical formula of the compound formed between cobalt (III) and the bromide ion it would be CoBr3, if this compound exist !
Isomers.
FeSe
A chemical formula or molecular formula is a way of expressing information about the atoms that constitute a chemical compound.So this being said, that basically means the chemical formula represents the atoms that are bonded to one another (An atom is classified according to chemical element and isotope more specifically)
Because as a rule only a chemical compound has a chemical formula; a mixture contain two or many componds and each compound has a different chemical formula.
A chemical symbol is just an abbreviation of that chemical's name while a formula will tell you how many of each different element are in a specific chemical compound.
Coffee is a heterogenous mixture of different compounds. It is not a single compound and does not have a chemical formula.
The chemical formula for the compound formed between iron(III) and iodine is FeI3 (iron(iii) iodide).
The chemical formula of the compound formed between cobalt (III) and the bromide ion it would be CoBr3, if this compound exist !
Alum is both a specific chemical compound and a class of chemical compounds. The specific compound is the hydratedpotassium aluminium sulfate (potassium alum) with the formula KAl(SO4)2·12H2O where as Alumina is an amphoteric oxide with the chemical formula Al2O3.
See this link.
Isomers.
The manganese(IV) selenide has the chemical formula MnSe2.
KCl
FeSe
KBr