Ca- CaBr2- Ca(NO3)2 CaO- Ca(OH)2- CaCl2

Question

Ca- CaBr2- Ca(NO3)2
CaO- Ca(OH)2- CaCl2

Answer 1

Ca + 2HBr = CaBr₂ + H₂.
CaBr₂ + 2AgNO₃ = Ca(NO₃)₂ + 2AgBr.
2Ca(NO₃)₂ = 2CaO + 4NO₂ + O₂.
CaO + H₂O = Ca(OH)₂.
Ca(OH)₂ + 2HCl = CaCl₂ + 2H₂O.

Answer 2

Ca+2HBr=CaBr2+H2, CaBr2+2HNO3=Ca(NO3)2+2HBr.
CaO+2NaOH=Ca(OH)2+Na2O, Ca(OH)2+2HCl=CaCl2+2H2O.