KCH3CO2=potasium acetate.
C2H3O2 would be the formula for an acetate. You don't get a stable molecule with that formula - you get an "anion". The formula for the acetate anion is written variously as CH3CO2−, C2H3O2−, or CH3COO−.
Pb(CH3COO)2 is the chemical formula of lead(II) acetate.
The formula is Ga(CH3COO)3
Acetate ion is CH3C00-, C2H3O2-. It is the conjugate base of acetic acid, CH3COOH
Tin(IV) acetate has the chemical formula (not symbol) Sn(C2H3O2)4.
calcium acetatecalcium acetate
The formula is Sr(C2H3O2)2
The formula for iron(II) acetate is to my knowledge Fe(C2H3O2)2. And iron(III) acetate is to my knowledge Fe(C2H3O2)3.
Er(C2H3O2)3
it would be Ag C2H3O2
B(c2h3o2)3
Assuming that the questioner meant the formula to be Al(C2H3O2)3, which the questioner probably was unable to write on a normal keyboard, the answer is aluminum acetate.
C2H3O2 is part of the ethanoic (acetic) acid formula (C2H4O2), minus one hydrogen atom (proton). So you often see C2H3O2 expressed as part of acetate formulae such as in Lead acetate Pb(C2H3O2)2.
Pb(CH3COO)2 is the chemical formula of lead(II) acetate.
The chemical formula of lead acetate is Pb(CH3COO)4.
Pb(C2H3O2)2
Pb(C2H3O2)4
Fe(C2H3O2)3.