The Mineral Pyrolusite Is a Compound of ⁵⁵Mn and ¹⁶O

question 39

Multiple Choice

The mineral pyrolusite is a compound of ⁵⁵Mn and ¹⁶O. If 63% of the mass of pyrolusite is due to manganese, what is the empirical formula of pyrolusite

• A) MnO
• B) Mn₂O
• C) Mn₂O₂
• D) MnO₂
• E) none of these

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