Question

Генетические цепочки. 3 и 4 варианты

Answer 1

III
1)4Al+3O2=2Al2O3
Al2O3+3H2SO4=Al2(SO4)3+3H2O
Al2(SO4)3+6NaOH=2Al(OH)3+3Na2SO4
2Al(OH)3=Al2O3+3H2O
2)2P+5O2=2P2O5
P2O5+3H2O=2H3PO4
H3PO4+3KOH=K3PO4+3H2O
IV 
1)2Zn+O2=2ZnO
ZnO+2HBr=ZnBr2+H2O
ZnBr2+2NaOH=Zn(OH)2+2NaBr
Zn(OH)2=ZnO+H2O
2)N2+O2=2NO
2NO+O2=2NO2
4NO2+O2=2N2O5
N2O5+H2O=2HNO3