запишите пожалуйста реакции хим. превращений С->CH4 ->CO2 ->H2CO3->Na2CO3->CaCO3;
Mn->Mn(NO3)2->Mn(OH)2 ->MnO2->MnCl2->MnOHCl
Mn->Mn(NO3)2->Mn(OH)2 ->MnO2->MnCl2->MnOHCl
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Answers & Comments
CH4+2O2=CO2+2H2O
CO2+H2O=H2CO3
H2CO3+2NaOH=Na2CO3+2H2O
Na2CO3+CaCl2=CaCO3+2NaCl
Mn+4HNO3=Mn(NO3)2 +2NO2+2H2O
Mn(NO3)2+2NaOH=Mn(OH)2+2NaNO3
Mn(OH)2=MnO+H2O
MnO+2HCl=MnCl2+H2O
MnCl2+NaOH=NaCl+MnOHCl