# Problem: In acidic solution, O3 and Mn2+ ions react spontaneously:O3(g) + Mn2+(aq) + H2O(l) ⟶ O2(g) + MnO2(s) + 2H+(aq)        E°cell = 0.84 V(a) Write the balanced half-reactions.

###### FREE Expert Solution

Step 1. Separate the whole reaction into half-reactions

*ignore H2O(l) and H+

O3(g) O2(g)

Mn2+(aq) MnO2(s)

Step 2. Balance the non-hydrogen and non-oxygen elements first

O3(g) O2(g)

Mn2+(aq) MnO2(s)

Step 3. Balance oxygen by adding H2O to the side that needs oxygen (1 O: 1 H2O)

O3(g) O2(g) + H2O(l)

Mn2+(aq) + 2 H2O(l) MnO2(s)

89% (205 ratings) ###### Problem Details

In acidic solution, O3 and Mn2+ ions react spontaneously:

O3(g) + Mn2+(aq) + H2O(l) ⟶ O2(g) + MnO2(s) + 2H+(aq)        E°cell = 0.84 V

(a) Write the balanced half-reactions.

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Our data indicates that this problem or a close variation was asked in Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition. You can also practice Chemistry: The Molecular Nature of Matter and Change - Silberberg 8th Edition practice problems.