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1.CaCO3 → CaO + CO2↑
2.CaO + H2O → Ca(OH)2
3.Ca(OH)2 + 2 HNO3 → Ca(NO3)2 + 2 H2O
4.Ca(OH)2 + H2CO3 → CaCO3 + 2 H2O
5.CaO + 2 HCl → CaCl2 + H2O
6.Ca(OH)2 + 2 HCl → CaCl2 + 2 H2O
B.
1. 2 Ca + O2 → 2 CaO
2. CaO + H2O → Ca(OH)2
3. Ca(OH)2 + H2CO3 → CaCO3 + 2 H2O
4. CaCO3 → CaO + CO2↑
C.
1.CaO + H2O → Ca(OH)2
2.Ca(OH)2 + SiO2 → CaSiO3 + H2O
3.CaO + CO2 → CaCO3
4.Ca(OH)2 + CO2 → CaCO3 + H2O