Question 446 of 513

Balance the equation: Al + O2 → Al2O3

  • Al + O2 → Al2O3
  • 4Al + 3O2 → 2Al2O3
  • 2Al + O2 → Al2O3
  • 2Al + 3O2 → 2Al2O3

Correct Answer: B

Explanation
Balance Al first, then oxygen. Correct balanced form: 4Al + 3O2 → 2Al2O3.
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