The chemical formula of zinc oxalate is C2O4Zn.
The formula is Zn(COO)2.
For example sodium oxalate has the chemical formula Na2C2O4.
The chemical formula for Calcium Oxalate is CaC2O4
Formula: FeC2O4
The formula of iron(III) oxalate is C6Fe2O12.
Formula of ammonium oxalate monohydrate: (NH4)2C2O4.H2O
Formula: (NH4)2C2O4
The formula is Be(COO)2.
Bac2o4
Cu2O. Cuprous is Cu+, cupric is Cu2+. Those are old-school names. Copper(I) oxide is a better name.
ZnO is called zinc oxide, but the formula Zn2O2 is not a correct one for this compound.
Ammonium oxalate monohydrate is (NH4)2C2O4•H2O
(NH4)2C2O4 is the chemical formula ammonium oxalate.