2NaOH + SO2 → Na2SO3 + H2O
2Na+ + OH- + SO2 → 2Na+ + SO32- + H2O
2OH- + SO2 → SO32- + H2O
NaOH + HCl → NaCl + H2O
Na+ + OH- + H+ + Cl- → Na+ + Cl- + H2O
H+ + OH- → H2O
NaOH + HCOOH → HCOONa + H2O
Na+ + OH- + HCOOH → HCOO- + Na+ + H2O
OH- + HCOOH → HCOO- + H2O
3NaOH + FeCl3 → 3NaCl + Fe(OH)3↓
3Na+ + 3OH- + Fe3+ + 3Cl- → 3Na+ + 3Cl- + Fe(OH)3↓
Fe3+ + 3OH- → Fe(OH)3↓
2NaOH + SO2 → Na2SO3 + H2O
2Na+ + OH- + SO2 → 2Na+ + SO32- + H2O
2OH- + SO2 → SO32- + H2O
NaOH + HCl → NaCl + H2O
Na+ + OH- + H+ + Cl- → Na+ + Cl- + H2O
H+ + OH- → H2O
NaOH + HCOOH → HCOONa + H2O
Na+ + OH- + HCOOH → HCOO- + Na+ + H2O
OH- + HCOOH → HCOO- + H2O
3NaOH + FeCl3 → 3NaCl + Fe(OH)3↓
3Na+ + 3OH- + Fe3+ + 3Cl- → 3Na+ + 3Cl- + Fe(OH)3↓
Fe3+ + 3OH- → Fe(OH)3↓