Ответ:
1. C+O2=CO2 с.к.=3
2. H2O+CO2=H2CO3 с.к.=3
3. H2CO3+2NaOH=Na2CO3+2H2O с.к.=6
4. Na2CO3+CaCl2=2NaCl+CaCO3 с.к.=5
5. CaCO3=CO2+CaO с.к.=3
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Answers & Comments
Ответ:
1. C+O2=CO2 с.к.=3
2. H2O+CO2=H2CO3 с.к.=3
3. H2CO3+2NaOH=Na2CO3+2H2O с.к.=6
4. Na2CO3+CaCl2=2NaCl+CaCO3 с.к.=5
5. CaCO3=CO2+CaO с.к.=3