KMnO4+K2SO3+NaOH—K2MnO4+Na2SO4+H2O

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This is a chemical reaction in which potassium permanganate (KMnO4), potassium sulfite (K2SO3), and sodium hydroxide (NaOH) react to form potassium manganate (K2MnO4), sodium sulfate (Na2SO4), and water (H2O). The balanced equation for this reaction is:

2KMnO4 + 3K2SO3 + 2NaOH → K2MnO4 + 3Na2SO4 + H2O

In this reaction, the permanganate ion (MnO4-) from potassium permanganate is reduced to manganate ion (MnO4^2-) in the presence of sulfite ion (SO3^2-) from potassium sulfite and hydroxide ion (OH^-) from sodium hydroxide.