AP Chemistryeasymcq1 pt
Which oxide formula is correct for aluminum and oxygen?
A.Al₂O₃
B.AlO
C.Al₃O₂
D.AlO₃
Explanation
Core Concept
Al³⁺ and O²⁻ balance when 2 Al³⁺ (total +6) pair with 3 O²⁻ (total −6), giving Al₂O₃. The least common multiple of the charges sets the subscripts.
Correct Answer
AAl₂O₃
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