When the Following Equation Is Balanced,the Coefficient of Al₂O₃ Is

Multiple Choice

When the following equation is balanced,the coefficient of Al₂O₃ is ________. Al₂O₃ (s) + C (s) + Cl₂ (g) → AlCl₃ (s) + CO (g)

A) 1
B) 2
C) 3
D) 4
E) 5