Which of the following equations shows the correct chemical reaction when aluminum is heated in the presence of oxygen?
(1) Al + O2 → AlO2
(2) 2Al + O2 → Al2O3
(3) 4Al + 3O2 → 2Al2O3
(4) 2Al2 + 3O2→ 2Al2O3
(1) Al + O2 → AlO2
(2) 2Al + O2 → Al2O3
(3) 4Al + 3O2 → 2Al2O3
(4) 2Al2 + 3O2→ 2Al2O3
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sorry I don't know, don't feel okay, someone will definitely help you ^_^
(2)2Al + O2 gives Al2O3