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Va Rog Ajutatima Va Rog Am Nevoie Plzzz Repedeeedau 5 Coronite PromittttHELPPPP class=

Răspuns :

CaCO3=CO2+CaO                                         a=CO2
CO2 +H2O------>H2CO3                                 b=CaO
                 <------                                              c=H2O
                                                                        d=NaOH
CO2 +2NaOH=Na2CO3 +H2O                        e=CaCl2
CaO+H2O=Ca(OH)2                                        f=O2
CaO + 2HCl =CaCl2 +H2O                           
2Ca +O2=2CaO
C+O2=CO2
H2SO4 +CaO=CaSO4 +H2O
2H2O=2H2 +O2