Al(OH)4 -1
I think the formula of aluminate is AlO2 and valency is 1
Formula: AlO2-
NH4+(aq) The (aq) means 'aqueous' which means that it is in solution - if you're not using state symbols don't put this in.It is NH4+
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.
The formula for a sulphate ion is SO42- so the valency of a sulphate ion is -2.
I think the formula of aluminate is AlO2 and valency is 1
Formula: AlO2-
Formula: AlO2-
Its valency is -2 Its chemical formula is Cr2O7
Valency of k=1+ valency so4=2- after crisscrossing the valencies, we get- chemical formula- k2so4
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
Ammonia is not an element and therefore does not have either a symbol or valency. Instead it has the chemical formula NH3.
Formula: AlO2-
NaAlO2
NH4+(aq) The (aq) means 'aqueous' which means that it is in solution - if you're not using state symbols don't put this in.It is NH4+
NaAlO2 is sodium aluminate