2K²O + 2CO² = 2K²CO2ZnO + H²O = Zn²(OH)SO² + 2H²O = H²SOSO³ + 3H²O = 2H²SOBaO + SO² = BaSOCuO + 2SO³ = Cu(SO⁴)³
2K²O + 2CO² = 2K²CO
2ZnO + H²O = Zn²(OH)
SO² + 2H²O = H²SO
SO³ + 3H²O = 2H²SO
BaO + SO² = BaSO
CuO + 2SO³ = Cu(SO⁴)³