2. Calculate oxidation state of each atom in the following compound. Arrange the following compounds in order of lower oxidation state to higher oxidation state of carbon. Show your work (а) СО (b) CO2 (c) H2CO (d) CH3OH (е) СН4

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### Oxidation States and Redox Reactions

#### 2. Calculating Oxidation States

Calculate the oxidation state of each atom in the following compounds. Arrange the compounds in order from the lowest to the highest oxidation state of carbon. Provide detailed calculations for your work:

- (a) CO
- (b) CO₂
- (c) H₂CO
- (d) CH₃OH
- (e) CH₄

#### 3. Identifying Redox Reactions

For each of the following equations, determine if a redox reaction has occurred. If so, identify the element that is oxidized and the element that is reduced.

1. \( \text{PBr}_3 (l) + 3 \text{H}_2\text{O} (l) \rightarrow \text{H}_3\text{PO}_3 (aq) + \text{HBr} (aq) \)

2. \( 3 \text{SO}_2 (g) + 2 \text{HNO}_3 (aq) + 2 \text{H}_2\text{O} (l) \rightarrow 3 \text{H}_2\text{SO}_4 (aq) + 2 \text{NO} (g) \)

3. \( \text{H}_2\text{SO}_4 (aq) + 2 \text{KOH} (aq) \rightarrow \text{K}_2\text{SO}_4 (aq) + 2 \text{H}_2\text{O} (l) \)

4. \( \text{I}_2\text{O}_5 (s) + 5 \text{CO} (g) \rightarrow \text{I}_2 (s) + 5 \text{CO}_2 (g) \) 

Each equation needs to be analyzed for changes in oxidation states to verify if a redox process has taken place. Remember to detail your findings, specifying which element undergoes oxidation and which undergoes reduction.
Transcribed Image Text:### Oxidation States and Redox Reactions #### 2. Calculating Oxidation States Calculate the oxidation state of each atom in the following compounds. Arrange the compounds in order from the lowest to the highest oxidation state of carbon. Provide detailed calculations for your work: - (a) CO - (b) CO₂ - (c) H₂CO - (d) CH₃OH - (e) CH₄ #### 3. Identifying Redox Reactions For each of the following equations, determine if a redox reaction has occurred. If so, identify the element that is oxidized and the element that is reduced. 1. \( \text{PBr}_3 (l) + 3 \text{H}_2\text{O} (l) \rightarrow \text{H}_3\text{PO}_3 (aq) + \text{HBr} (aq) \) 2. \( 3 \text{SO}_2 (g) + 2 \text{HNO}_3 (aq) + 2 \text{H}_2\text{O} (l) \rightarrow 3 \text{H}_2\text{SO}_4 (aq) + 2 \text{NO} (g) \) 3. \( \text{H}_2\text{SO}_4 (aq) + 2 \text{KOH} (aq) \rightarrow \text{K}_2\text{SO}_4 (aq) + 2 \text{H}_2\text{O} (l) \) 4. \( \text{I}_2\text{O}_5 (s) + 5 \text{CO} (g) \rightarrow \text{I}_2 (s) + 5 \text{CO}_2 (g) \) Each equation needs to be analyzed for changes in oxidation states to verify if a redox process has taken place. Remember to detail your findings, specifying which element undergoes oxidation and which undergoes reduction.
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