Question

Ca→CaCl2→ Ca ( OH) 2→ Ca ( NO3) 2

Answer 1

 CaO + H2O = Ca(OH)2   Ca(OH)2 + CuCl2 → Cu(OH)2↓ + CaCl2 CaCl2 +2AgNO3 → 2AgCl↓ + Ca(NO3)2

Answer 2

1.Ca +Cl2 →CaCl2
2.CaCl2 + 2 NaOH = Ca(OH)2 + 2 NaCl
3.Ca ( OH) 2+2HNO = Ca ( NO3) 2+ 2H2O