4Al + 3O2 → 2Al2O3;
Al2O3 + 3H2SO4 -(tC)→ Al2(SO4)3 + 3H2O;
Al2(SO4)3 + 6KOH → 2Al(OH)3 ↓ + 3K2SO4;
Al(OH)3 + 3HNO3 → Al(NO3)3 + 3H2O;
2Al(OH)3 -(tC)→ Al2O3 + 3H2O;
Al(OH)3 + 3NaOH -(tC)→ Na3AlO3 + 3H2O.
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Answers & Comments
4Al + 3O2 → 2Al2O3;
Al2O3 + 3H2SO4 -(tC)→ Al2(SO4)3 + 3H2O;
Al2(SO4)3 + 6KOH → 2Al(OH)3 ↓ + 3K2SO4;
Al(OH)3 + 3HNO3 → Al(NO3)3 + 3H2O;
2Al(OH)3 -(tC)→ Al2O3 + 3H2O;
Al(OH)3 + 3NaOH -(tC)→ Na3AlO3 + 3H2O.