Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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![**Question 2: Which reactant is oxidized in the following reaction?**
\[ \text{I}_2 + 2\text{S}_2\text{O}_3^{2-} \rightleftharpoons 2\text{I}^- + \text{S}_4\text{O}_6^{2-} \]
**Explanation of Reaction:**
In this chemical equation, iodine (\(\text{I}_2\)) and thiosulfate ions (\(\text{S}_2\text{O}_3^{2-}\)) are reactants, while iodide ions (\(\text{I}^-\)) and tetrathionate ions (\(\text{S}_4\text{O}_6^{2-}\)) are the products.
**Oxidation Process:**
Oxidation involves the loss of electrons. In this reaction:
- Iodine (\(\text{I}_2\)) is converted to iodide ions (\(\text{I}^-\)), indicating a gain of electrons and thus, a reduction.
- Thiosulfate ions (\(\text{S}_2\text{O}_3^{2-}\)) are transformed into tetrathionate ions (\(\text{S}_4\text{O}_6^{2-}\)).
The focus is on the thiosulfate ions as they undergo oxidation, meaning they lose electrons during the reaction process.](https://content.bartleby.com/qna-images/question/01e5e66e-0e79-4c86-85a9-0b0202abd934/c034a53b-570d-4689-a414-5cc899a89d27/1i8118_processed.png)
Transcribed Image Text:**Question 2: Which reactant is oxidized in the following reaction?**
\[ \text{I}_2 + 2\text{S}_2\text{O}_3^{2-} \rightleftharpoons 2\text{I}^- + \text{S}_4\text{O}_6^{2-} \]
**Explanation of Reaction:**
In this chemical equation, iodine (\(\text{I}_2\)) and thiosulfate ions (\(\text{S}_2\text{O}_3^{2-}\)) are reactants, while iodide ions (\(\text{I}^-\)) and tetrathionate ions (\(\text{S}_4\text{O}_6^{2-}\)) are the products.
**Oxidation Process:**
Oxidation involves the loss of electrons. In this reaction:
- Iodine (\(\text{I}_2\)) is converted to iodide ions (\(\text{I}^-\)), indicating a gain of electrons and thus, a reduction.
- Thiosulfate ions (\(\text{S}_2\text{O}_3^{2-}\)) are transformed into tetrathionate ions (\(\text{S}_4\text{O}_6^{2-}\)).
The focus is on the thiosulfate ions as they undergo oxidation, meaning they lose electrons during the reaction process.
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