No. Barium and calcium are two different (albeit chemically similar) elements.
Ca(OH)2 + (NH4)2SO4 --> CaSO4 + 2NH3 + 2H2O Calcium Hydroxide + Ammonium Sulphate --> Calcium Sulphate + Ammonia + Water
This is a double replacement reaction which would look like this: 2NH4C2H3O2 + CaSO4 yields (NH4)2SO4 + Ca(C2H3O2)2 so the products are (NH4)2SO4, which is ammonium sulfate, and Ca(C2H3O2)2, which...
The chemical formula of calcium sulfate is CaSO4.
No, they are not.