2HNO3+MgCl2 → Mg(NO3)2+2HCl
2 H3PO4+6 Na → 2 Na3PO4+3 H2
Fe(OH)2+2 HCl → FeCl2+2 H2O
K2S+2 HCl → 2 KCl + H2S
2HNO3+MgCl2 → Mg(NO3)2+2HCl
2 H3PO4+6 Na → 2 Na3PO4+3 H2
Fe(OH)2+2 HCl → FeCl2+2 H2O
K2S+2 HCl → 2 KCl + H2S