Ответ:
2Ca + O2 = 2CaO
CaO + H2SO4 = CaSO4 + H2O
CaSO4 + 2KOH = K2SO4 + Ca(OH)2
Ca(OH)2 + 2KCl = CaCl2 + 2KOH
Šalom Aleixem
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Ответ:
2Ca + O2 = 2CaO
CaO + H2SO4 = CaSO4 + H2O
CaSO4 + 2KOH = K2SO4 + Ca(OH)2
Ca(OH)2 + 2KCl = CaCl2 + 2KOH
Šalom Aleixem