An Oxide of Gadolinium Contains 86

question 48

Multiple Choice

An oxide of gadolinium contains 86.76 mass % Gd. What is its empirical formula?

• A) Gd₂O₃
• B) Gd₃O₂
• C) Gd₃O₄
• D) Gd₁₃O₂
• E) GdO

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