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I think the formula of aluminate is AlO2 and valency is 1
The formula for lithium sulphide is Li2S.
The valency of hydrogen sulfate is -1. It has the chemical formula HSO4-.
The formula Fe3O4 is an empirical formula, and a more nearly structural formula is FeO.Fe2O3, which shows valency 2 in its first part and valency 3 in its second part. Two-thirds of the iron cations have valency 3 and the others valency 2, combined in a single crystal structure.
-1 hco3-1 all bases are - and most if not all the ones with hydrogen in front are -1 for example- hydrogen sulfate (hso4-1)or hydroxide (oh-1)
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NiS .simple just take H2S so s has valency 2.we know nickel has valency 2(i hope you did) so formula is NiS
The formula for cesium sulphide is Cs2S.
I think the formula of aluminate is AlO2 and valency is 1
The formula for lithium sulphide is Li2S.
The formula for Lead Sulfide (or Lead Sulphide) is either: PbS for Lead(II) Sulphide, or PbS2 for Lead(IV) Sulphide.
The chemical formula of caesium sulphide is Cs2S.
The formula is: Li2S the "2" is a subscript
Formula: CaS
For example sodium oxalate has the chemical formula Na2C2O4.
Valency of k=1+ valency so4=2- after crisscrossing the valencies, we get- chemical formula- k2so4
AlS