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When solid sodium hydride, NaH, is added to water, the hydride ion reacts according to the following equation - VCE - SSCE Chemistry - Question 7 - 2009 - Paper 1
Question 7
When solid sodium hydride, NaH, is added to water, the hydride ion reacts according to the following equation. H⁻(aq) + H₂O(l) → OH⁻(aq) + H₂(g) This reaction can ... show full transcript
Worked Solution & Example Answer:When solid sodium hydride, NaH, is added to water, the hydride ion reacts according to the following equation - VCE - SSCE Chemistry - Question 7 - 2009 - Paper 1
Step 1
This reaction can be classified as
Answer
To classify the given reaction, we should analyze the roles of the reactants and products.
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Identify the reaction type: The hydride ion (H⁻) is a strong base, as it accepts a proton (H⁺) from water. This indicates an acid-base reaction since H⁻ is acting as a Brønsted-Lowry base.
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Check for oxidation-reduction: In this reaction, the oxidation states of all elements involved remain unchanged. Thus, no electron transfer occurs, which is characteristic of an oxidation-reduction reaction.
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Conclusion: Since the reaction exhibits characteristics of an acid-base reaction without demonstrating oxidation or reduction, we classify it as neither acid-base nor oxidation-reduction. The correct choice is D.