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A. CO32- +2H+=H2O+CO2¡ü
B. CaCO3+2H+=Ca2++H2O+CO2¡ü
C. CaCO3+2CH3COOH =Ca2++2CH3COO-+H2O+CO2¡ü
D. CO32-+2CH3COOH =2CH3COO-+H2O+CO2¡ü
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