Which hydroxide is formed when sodium reacts with water?

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Multiple Choice

Which hydroxide is formed when sodium reacts with water?

Explanation:
When an alkali metal reacts with water, it forms the metal hydroxide of that element and releases hydrogen gas. The product is the hydroxide of the metal involved. For sodium, this reaction gives sodium hydroxide, with hydrogen gas produced as a by-product. The balanced equation is 2 Na + 2 H2O → 2 NaOH + H2. The other options would come from different metals (lithium or potassium hydroxide) or a different metal (magnesium hydroxide), not from sodium. So sodium hydroxide is the correct product.

When an alkali metal reacts with water, it forms the metal hydroxide of that element and releases hydrogen gas. The product is the hydroxide of the metal involved. For sodium, this reaction gives sodium hydroxide, with hydrogen gas produced as a by-product. The balanced equation is 2 Na + 2 H2O → 2 NaOH + H2. The other options would come from different metals (lithium or potassium hydroxide) or a different metal (magnesium hydroxide), not from sodium. So sodium hydroxide is the correct product.

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