Na2S + 2HCl => H2S↑ + 2NaCl
Na2S + 2HCl => H2S + 2NaCl
2Na+ + S2− + 2H+ + 2Cl− = 2Na+ + 2Cl− + H2S
S2− + 2H+ = H2S
Na2S + 2HCl => H2S↑ + 2NaCl
Na2S + 2HCl => H2S + 2NaCl
2Na+ + S2− + 2H+ + 2Cl− = 2Na+ + 2Cl− + H2S
S2− + 2H+ = H2S