Ответ:
2Na+O2-->2Na2O
Na2O+HOH-->2NaOH
2NaOH+H2CO3-->Na2CO3+2HOH
2Na⁺+2OH⁻+2H⁺+CO²⁻₃--> 2Na⁺+CO²⁻₃+2HOH
2OH⁻+2H⁺-->2HOH
Na2CO3+CaCL2-->CaCO3+2NaCL
2Na⁺+CO²⁻₃+Ca²⁺+2CL⁻-->CaCO3+2Na⁺+2CL⁻
CO²⁻₃+Ca²⁺-->CaCO3
Объяснение:
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Ответ:
2Na+O2-->2Na2O
Na2O+HOH-->2NaOH
2NaOH+H2CO3-->Na2CO3+2HOH
2Na⁺+2OH⁻+2H⁺+CO²⁻₃--> 2Na⁺+CO²⁻₃+2HOH
2OH⁻+2H⁺-->2HOH
Na2CO3+CaCL2-->CaCO3+2NaCL
2Na⁺+CO²⁻₃+Ca²⁺+2CL⁻-->CaCO3+2Na⁺+2CL⁻
CO²⁻₃+Ca²⁺-->CaCO3
Объяснение: