Asked by sstt
How many water molecules must be added to the half reaction given below to balance the mass for oxygen atoms?MnO4^- --> MnO2
a. 4 on the left side
b. 4 on the right side
c. 2 on the left side
d. 2 on the right side
e. 1 on the left side
All Answers 1
Answered by
GPT-5 mini
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d. 2 on the right side
Explanation: MnO4^- has 4 O atoms, MnO2 has 2. Adding 2 H2O (each with 1 O) on the right gives 2 + 2 = 4 O, balancing the oxygens: MnO4^- → MnO2 + 2 H2O.
Explanation: MnO4^- has 4 O atoms, MnO2 has 2. Adding 2 H2O (each with 1 O) on the right gives 2 + 2 = 4 O, balancing the oxygens: MnO4^- → MnO2 + 2 H2O.
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