1) 2Ca+ O₂--> 2CaO 2) CaO+ H₂SO₄--> CaSO₄+ H₂O 3) Ca+ 2H₂O--> Ca(OH)₂+ H₂ 4) Ca(OH)₂+ 2HNO₃--> Ca(NO₃)₂+ 2H₂O 5) Ca(OH)₂+ H₂SO₄--> CaSO₄+ 2H₂O
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2) CaO + H2SO4------>CaSO4 + H2O
3) Ca + 2H2O------>Ca(OH)2 + H2
4) Ca(OH)2 + 2HNO3----->Ca(NO3)2 + 2H2O
5) Ca(OH)2 + H2SO4---->CaSO4 + 2H2O
1)
2Ca+ O₂--> 2CaO
2)
CaO+ H₂SO₄--> CaSO₄+ H₂O
3)
Ca+ 2H₂O--> Ca(OH)₂+ H₂
4)
Ca(OH)₂+ 2HNO₃--> Ca(NO₃)₂+ 2H₂O
5)
Ca(OH)₂+ H₂SO₄--> CaSO₄+ 2H₂O