Product of K2S + H2O and balance it.
K2S is potassium sulfide. It acts as a base and it readily reacts with water (even water vapor in the present in the air). The balanced chemical equation is below.
K2S + H2O --> KSH + KOH
The reaction produces potassium hydrogen sulfide and potassium hydroxide. The balanced equation involves one molecule for each species.
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