Bài 1:

1. Al2O3 → 2Al + 3O2
2Al + 6HCl → 2AlCl3 + 3H2
2AlCl3 + 6NaOH → 2Al(OH)3 + 6NaCl
2Al(OH)3 + 3H2SO4 → Al2(SO4)3 + 6H2O

2. Mg → MgO
MgO + 2HCl → MgCl2 + H2O
MgCl2 + 2NaOH → Mg(OH)2 + 2NaCl
Mg(OH)2 + H2SO4 → MgSO4 + 2H2O

3. FeO + H2 → Fe + H2O
Fe + 2HCl → FeCl2 + H2
FeCl2 + 2NaOH → Fe(OH)2 + 2NaCl
Fe(OH)2 + H2SO4 → FeSO4 + 2H2O

4. Cu → CuO
CuO + H2SO4 → CuSO4 + H2O
CuSO4 + 2NaOH → Cu(OH)2 + Na2SO4
Cu(OH)2 + 2HCl → CuCl2 + 2H2O

Bài 2:

a. NaCl: Muối natri clorua
NaOH: Hidroxit natri
H2SO4: Axit sulfuric
H2O: Nước
HCl: Axit clohidric

b. NaCl: Muối natri clorua
NaOH: Hidroxit natri
NaCl: Muối natri clorua

c. AgNO3: Nitrat bạc
NaOH: Hidroxit natri
NaCl: Muối natri clorua