1) Ba(OH)2 + 2HCl -> BaCl2 + 2H2OBa(OH)2 + 2KNO3 -> Ba(NO3)2 + 2KOH
2) Ba(OH)2 + CO2 -> BaCO3 + H2OCa(OH)2 is already a reactant in this case.
3) Ba(OH)2 + Na2SO4 -> BaSO4 + 2NaOHBa(OH)2 + 2FeCl3 -> BaCl2 + 2Fe(OH)3
4) Ba(OH)2 + SiO2 -> No reactionCuO is already a product in this case.
1) Ba(OH)2 + 2HCl -> BaCl2 + 2H2O
Ba(OH)2 + 2KNO3 -> Ba(NO3)2 + 2KOH
2) Ba(OH)2 + CO2 -> BaCO3 + H2O
Ca(OH)2 is already a reactant in this case.
3) Ba(OH)2 + Na2SO4 -> BaSO4 + 2NaOH
Ba(OH)2 + 2FeCl3 -> BaCl2 + 2Fe(OH)3
4) Ba(OH)2 + SiO2 -> No reaction
CuO is already a product in this case.