Balance the Following Oxidation-Reduction Reaction Occurring in an Acidic Solution

question 80

Multiple Choice

Balance the following oxidation-reduction reaction occurring in an acidic solution. MnO₄^-(aq) + Cr²⁺(aq) → Mn²⁺(aq) + Cr³⁺(aq)

• A) MnO₄^-(aq)+ 8 H⁺(aq)+ 5 Cr²⁺(aq)→ Mn²⁺(aq)+ 4 H₂O(l)+ 5 Cr³⁺(aq)
• B) MnO₄^-(aq)+ 8 H⁺(aq)+ Cr²⁺(aq)→ Mn²⁺(aq)+ 4 H₂O(l)+ Cr³⁺(aq)
• C) MnO₄^-(aq)+ 4 H₂(g)+ 5 Cr²⁺(aq)→ Mn²⁺(aq)+ 4 H₂O(l)+ 5 Cr³⁺(aq)
• D) MnO₄^-(aq)+ 8 H⁺(aq)+ 2 Cr²⁺(aq)→ Mn²⁺(aq)+ 4 H₂O(l)+ 2 Cr³⁺(aq)
• E) MnO₄^-(aq)+ Cr²⁺(aq)→ Mn²⁺(aq)+ 2 O₂(g)+ Cr³⁺(aq)

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Definitions:

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Lifetime Prevalence

The proportion of a population that at some point in their life (up to the time of assessment) has experienced a particular disorder.

DSM-5

The Diagnostic and Statistical Manual of Mental Disorders, fifth edition, which is a comprehensive classification of officially recognized psychiatric disorders, published by the American Psychiatric Association.

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