Problem: As K2O dissolves in water, the oxide ion reacts with water molecules to form hydroxide ions.Based on the definitions of acid and base, identify the acid and base in this reaction. Then identify the spectator ion.

FREE Expert Solution

Molecular Equation: K2O(aq) + H2O(l) → KOH(aq)

**need to add a coeffient of 2 to KOH to balance the reaction

 K2O(aq) + H2O(l) → 2KOH(aq)

Total Ionic Equation (i.e. aqueous species are the ones broken up in solution)

2K+(aq) + O2-(aq) + H2O(l) → 2K+(aq) + 2OH-(aq)

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Problem Details

As K2O dissolves in water, the oxide ion reacts with water molecules to form hydroxide ions.

Based on the definitions of acid and base, identify the acid and base in this reaction. Then identify the spectator ion.

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What scientific concept do you need to know in order to solve this problem?

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