1)C+2CuO=2Cu+CO2
C(0) -2 = C(+2)
Cu(+2) +2 = Cu(0)
2)С+2H2=CH4
C(0) +4 =C(-4)
H2(0) -2 =2H(+1)
3)C+Si=SiC
Si(0) -4 = Si(+4)
1)C+2CuO=2Cu+CO2
C(0) -2 = C(+2)
Cu(+2) +2 = Cu(0)
2)С+2H2=CH4
C(0) +4 =C(-4)
H2(0) -2 =2H(+1)
3)C+Si=SiC
C(0) +4 =C(-4)
Si(0) -4 = Si(+4)