Cu(OH)2 → CuO + H2O
H2S2O3 → H2O + S + SO2
2K + 2H2O → 2KOH + H2
Zn + 2HCl → ZnCl2 + H2
3NaOH + FeCl3 → Fe(OH)3 + 3NaCl
Cu(OH)2 → CuO + H2O
H2S2O3 → H2O + S + SO2
2K + 2H2O → 2KOH + H2
Zn + 2HCl → ZnCl2 + H2
3NaOH + FeCl3 → Fe(OH)3 + 3NaCl