What is the chemical equation for potassium oxide + water ---> potassium hydroxide?

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What is the chemical equation for potassium oxide + water ---> potassium hydroxide?

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Answer 1 · 2014-05-13T01:21:34

$K_{2} O + H_{2} O \to 2 KOH$ $"K"_2"O" + "H"_2"O" -> 2"KOH"$

Explanation:

Potassium oxide + water produces potassium hydroxide.

Potassium oxide is an ionic compound. The potassium has a charge of $K^{+}$ $"K"^+$ and oxygen has a charge of $O^{2 -}$ $"O"^(2-)$ . We need 2 potassium ions to balance one oxide ion making the formula $K_{2} O$ $"K"_2"O"$ .

Potassium hydroxide is an ionic compound. The potassium has a charge of $K^{+}$ $"K"^+$ and hydroxide has a charge of ${OH}^{-}$ $"OH"^-$ . We need 1 potassium ion to balance one hydroxide ion making the formula $KOH$ $"KOH"$ .

$K_{2} O + H_{2} O \to KOH$ $"K"_2"O" +" H"_2"O" -> "KOH"$

To balance the equation we place a coefficient of 2 in front of the potassium hydroxide.

$K_{2} O + H_{2} O \to 2 KOH$ $"K"_2"O" + "H"_2"O" -> 2"KOH"$

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What is the chemical equation for potassium oxide + water ---> potassium hydroxide?

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