а)Cu→CuO→CuCl2→Cu(OH)2→CuO→CuSO4
2Cu + O2 = 2CuO
CuO + 2HC1(разб.) = CuCl2 + H2O
CuCl2 + 2NaOH(разб.) = Cu(OH)2↓ + 2NaCl
Cu(OH)2 = CuO + H2O
CuO + H2SO4 = CuSO4 + H2O
б)AlCl3→Al(OH)3→Al2O3→Al2(SO4)3→Al(OH)3→Al(OH)2Cl
AL2(SO4)3+ 6NaOH=2AL(OH)3+3Na2SO4
2AL(OH)3=AL2O3+3H2O
AL2O3+6HCL=2ALCL3+3H2O
ALCL3+3NaOH=AL(OH)3+3NaCL
AL(OH)3+HCL=AL(OH)2CL+H2O
в)Na2O→NaOH→NaHSO4→Na2SO4→SO3
Na2O+Н2О=2NaOH
NaOH+H2SO4=NaHSO4+Н2О
NaHSO4+NaOH=Na2SO4+Н2О
Na2SO4+H2O=NaOH+SO3
г)CaCO3→CaO→Ca(OH)2→Ca(HCO3)2→CO2
CaCO3+CaO+CO2
CaO+H2O=Ca(OH)2
Ca(OH)2+2CO2=Ca(HCO3)2
Ca(HCO3)2=CaCO3+CO2+H2O
В СКОБКАХ ПИШУ СТЕПЕНЬ ОКИСЛЕНИЯ
Al(+3)Cl3(-1), H2(+1)Se(-2), Ca(+2)H2(-1), Si(+4)F4(-1), Al(+3)N(-3), Xe(+8)O4(-2), Li(+1)H(-1), S(+6)F6(-1), N(-3)H3(+1), N(+3)F3(-1), N2(+5)O5(-2), N2(-2)H4(+1), O2(+1)F2(-1), P4(+5)O10(-2), I2(+5)O5(-2), Ca2(+2)Si(-4);
b. H(+1)Сl(+1)O(-2), K(+1)H(+1)F2(-1), K2(+1)C(+4)O3(-2), K(+1)Сl(+5)O3(-2), H(+1)Сl(+7)О4(-2), N(-3)H4(+1)O(-2)H(+1), Na(+1)Cl(+3)O2(-2), H3(+1)P(+5)O4(-2), K2(+1)Cr2(+6)O7(-2), N(-1)H2(+1)O(-2)H(+1), Mg(+2)O(-2)H(+1)Cl(-1), Cl2(0).
c. Mn(+2)S(+6)O4(-2), Li(+1)N(+3)O2(-2), Pb(2+)Si(+4)O3(-2), Fe(+3) (N(+5)O3(-2))3;Fe2(3+) (S(+6)O4(-2))3, Hg(2+)(N(+5)O3(-2))2, Zn3(+2)(P(+5)O4(-2))2, Cd(+2)(H(+1)C(+4)O3(-2))2;
d. Fe3(+2) (P(+5)O4(-2))2, Sn(+2)H(+1)P(+5)O4(-2), Pb(+2) (H(+1)S(+6)O4(-2))2, Cu(+2) (N(+5)O3(-2))2; Ag2(+1)S(+4)O3(-2), Cu(+2) (N(+3)O2(-2))2, Fe(+2) (H2(+1)P(+5)O4(-2))2, Zn(+2)S(+4)O3(-2),
Fe(+2) (О(-2)H(+1))2 Cl(0); Al(+3)O(-2)H(+1) (N(+5)O3(-2))2,
Сu2(+1) (O(-2)H(+1))2C(+4)O3(-2), Ca3(+2) (P(+5)O4(-2))2.
