1. Ca(OH)2+H2S--->CaS+2H2O
2. Ca+H2S--->CaS+H2
3. CaO+H2S--->CaS+H2O
Ca(OH)2+2HNO3--->Ca(NO3)2+2H2O
Ca+2HNO3--->Ca(NO3)2+H2
CaO+2HNO3--->Ca(NO3)2+H2O
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1. Ca(OH)2+H2S--->CaS+2H2O
2. Ca+H2S--->CaS+H2
3. CaO+H2S--->CaS+H2O
Ca(OH)2+2HNO3--->Ca(NO3)2+2H2O
Ca+2HNO3--->Ca(NO3)2+H2
CaO+2HNO3--->Ca(NO3)2+H2O