2Cu+O2=2CuO
CuO+2HNO3=Cu(NO3)2+H2O
Cu(NO3)2+2NaOH=Cu(OH)2+2NaNO3
Cu(OH)2=CuO+H2O
CuO+H2=Cu+H2O
2Al+6HCl=2AlCl3+3H2
AlCl3+3NaOH=3NaCl+Al(OH)3
2Al(OH)3=Al2O3+3H2O
4Fe+3O2=2Fe2O3
Fe2O3+6HCl=2FeCl3+3H2O
FeCl3+3NaOH=3NaCl+Fe(OH)3
2Na+2H2O=2NaOH +H2
2NaOH+CuCl2=2NaCl+Cu(OH)2
Cu(OH)2+2HCl=CuCl2+2H2O
С2h4+h2o->c2h5oh
C2h5oh+o2->ch3coh
Ch3coh+Ag2o->ch3cooh+2Ag
Ch3cooh+c2h5oh->ch3cooc2h5+h2o
тогда так:
CuCl2+2H2SO4 -> Cu(HSO4)2 +2HCl
H2SO4+6HI -> 3I2 +4H2O +S
2CuCl2+4HI -> 2CuI + I2 +4HCl
O2+4HI ->2 I2+ 2H2O