Dokoncz rownanie podanych tlenkow K₂O +H₂0 -> K₂0 + HCL -> CaO + H₂0 -> Cao + H₂SO₃ ->

K2O + H2O--->2KOH K2O+2HCl--->2KCl + H2O CaO + H2O--->Ca(OH)2 CaO + H2SO3--->CaSO3 + H2O

K₂O +H₂0 ->2KOH K₂0 + 2HCL ->2KCl+H₂O CaO + H₂0 ->Ca(OH)₂ CaO + H₂SO₃ ->CaSO₃+H₂O