this is veery important question from class 9 only question number 5 and 8
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CaCO3 gives CaO+CO2
C+O2 gives CO2
CaO+H2O gives Ca(OH)2
2Al +3Cl2 gives 2AlCl3
Fe+S gives FeS
C+O2 gives CO2
CaO+H2O gives Ca(OH)2
2Al +3Cl2 gives 2AlCl3
Fe+S gives FeS
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5 (a) caco3 ---cao + co2
(b) c + O2 --- co2
(c) cao + H2O ---- caoH
(d) Al + cl --- Alcl3
(e) Fe +so2 ---- Fes
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