CH4-CO2-NAHCO3-NA2CO3-CaCO3-CaO-Ca
1)CH4+2O2=CO2 +2H2O
2)CO2 + NaOH = NaHCO3
3)NaHCO3 + NaOH(конц) = Na2CO3 + H2O
4) Na2CO3+CaCl2= CaCO3+2NaCl
5)CaCO3 =t= CaO+CO2
6)4CaO+2Al=t=CaAl2O4+3Ca
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1)CH4+2O2=CO2 +2H2O
2)CO2 + NaOH = NaHCO3
3)NaHCO3 + NaOH(конц) = Na2CO3 + H2O
4) Na2CO3+CaCl2= CaCO3+2NaCl
5)CaCO3 =t= CaO+CO2
6)4CaO+2Al=t=CaAl2O4+3Ca