CaO + H2S = CaS + H2OCaO = Ca + O2CaO +2НСl = CaCl2 + H2OCaO + 2 HI = CaI2 + H2O
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CaO + H2S = CaS + H2O
CaO = Ca + O2
CaO +2НСl = CaCl2 + H2O
CaO + 2 HI = CaI2 + H2O
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