Write the equations for the electrical dissociation of sodium sulfide; sulfuric acid; barium hydroxide; zinc nitrate; potassium phosphate.

First, we write down the formulas of the compounds: sodium sulfide – Na2S, sulfuric acid – H2SO4, barium hydroxide – Ba (OH) 2, zinc nitrate – Zn (NO3) 2, potassium phosphate – K3PO4. Strong electrolytes (strong acids, alkalis, soluble salts) dissociate into the corresponding ions:
Na2S = 2Na (+) + S (2-);
H2SO4 = 2H (+) + SO4 (2-);
Ba (OH) 2 = Ba (2+) + 2OH (-);
Zn (NO3) 2 = Zn (2+) + 2NO3 (-);
K3PO4 = 3K (+) + PO4 (3-)
Accordingly, weak electrolytes do not dissociate, however, all compounds here are strong electrolytes