Составить уравнение электронного баланса: 1)Nacl=Na+Cl2 2)Nacl=Cl2+H2+NaOH 3)FeO+H2=H2O+Fe 4)ZnO+C=Co+Zn 5)Cr2O3+NH3=Cr+H2O+N2 6)Cr2O3+Al=Al2O3+Cr СРОЧНО!

1)Na(+1)cl(-1)=Na(0)+Cl2(0)Na(+1) +1e = Na(0) | 1 | 22Cl(-1) -1e = 2Cl(0) | 2 | 12NaCl=2Na+Cl22)2Na(+1)cl(-1) +2H2(+1)O(-2)=Cl2(0)+H2(0)+2Na(+1)O(-2)H(+1)2Cl(-1) -1e = 2Cl(0) | 2 | 12H(+1) +1e = 2H(0) | 2 | 13)Fe(+2)O(-2)+H2(0)=H2(+1)O(-2)+Fe(0)Fe(+2) +2e = Fe(0) | 2 | 12H(0) -1e = 2H(+1) | 2 | 14)Zn(+2)O(-2)+C(0)=C(+2)O(-2)+Zn(0)Zn(+2) +2e = Zn(0) | 2 | 1C(0) -2e = C(+2) | 2 | 15)Cr2(+3)O3(-2)+2N(-3)H3(+1)=2Cr(0)+3H2(+1)O(-2)+N2(0)2Cr(+3) +3e = 2Cr(0) | 6 | 12N(-3) -3e = 2N(0) | 6 | 16)Cr2(+3)O3(-2)+2Al(0)=Al2(+3)O3(-2)+2Cr(0)2Cr(+3) +3e = 2Cr(0) | 6 | 12Al(0) -3e = 2Al(+3) | 6 | 1