34. 2K,Cr20, + 2H2O+ 3S → 3502 + 4KOH + 2Cr,03

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For each reaction below, identify the atom oxidized, the atom reduced, the oxidizing agent, and the
reducing agent.

### Chemical Reactions

Here are some examples of chemical reactions involving various compounds, often used in educational settings to illustrate balancing equations and identifying reaction types:

34. **Reaction involving Potassium Dichromate and Sulfur**:
   - Equation: \( 2K_2Cr_2O_7 + 2H_2O + 3S \rightarrow 3SO_2 + 4KOH + 2Cr_2O_3 \)
   - This reaction demonstrates the redox reaction where potassium dichromate reacts with sulfur.

35. **Reaction involving Potassium Chlorate and Sucrose**:
   - Equation: \( 8KClO_3 + C_{12}H_{22}O_{11} \rightarrow 8KCl + 11H_2O + 12CO_2 \)
   - This is a decomposition reaction paired with the oxidation of sugar, where potassium chlorate is the oxidizing agent.

36. **Reaction involving Oxalic Acid and Potassium Permanganate**:
   - Equation: \( 3H_2C_2O_4 + 2KMnO_4 \rightarrow 6CO_2 + 2K_2O + Mn_2O_3 + 3H_2O \)
   - This showcases a redox reaction where oxalic acid reduces potassium permanganate resulting in manganese(III) oxide.

37. **Another Reaction involving Oxalic Acid and Potassium Permanganate**:
   - Equation: \( 4H_2C_2O_4 + 2KMnO_4 \rightarrow 8CO_2 + K_2O + Mn_2O_3 + 4H_2O \)
   - Similar to the previous, it involves the reduction of permanganate ions by oxalic acid, producing carbon dioxide and manganese(III) oxide.

### Notes:
These examples are useful in understanding stoichiometry and the conservation of mass in chemical equations. Each reaction involves balancing the number of atoms for each element on both sides of the equation to adhere to the law of conservation of mass.
Transcribed Image Text:### Chemical Reactions Here are some examples of chemical reactions involving various compounds, often used in educational settings to illustrate balancing equations and identifying reaction types: 34. **Reaction involving Potassium Dichromate and Sulfur**: - Equation: \( 2K_2Cr_2O_7 + 2H_2O + 3S \rightarrow 3SO_2 + 4KOH + 2Cr_2O_3 \) - This reaction demonstrates the redox reaction where potassium dichromate reacts with sulfur. 35. **Reaction involving Potassium Chlorate and Sucrose**: - Equation: \( 8KClO_3 + C_{12}H_{22}O_{11} \rightarrow 8KCl + 11H_2O + 12CO_2 \) - This is a decomposition reaction paired with the oxidation of sugar, where potassium chlorate is the oxidizing agent. 36. **Reaction involving Oxalic Acid and Potassium Permanganate**: - Equation: \( 3H_2C_2O_4 + 2KMnO_4 \rightarrow 6CO_2 + 2K_2O + Mn_2O_3 + 3H_2O \) - This showcases a redox reaction where oxalic acid reduces potassium permanganate resulting in manganese(III) oxide. 37. **Another Reaction involving Oxalic Acid and Potassium Permanganate**: - Equation: \( 4H_2C_2O_4 + 2KMnO_4 \rightarrow 8CO_2 + K_2O + Mn_2O_3 + 4H_2O \) - Similar to the previous, it involves the reduction of permanganate ions by oxalic acid, producing carbon dioxide and manganese(III) oxide. ### Notes: These examples are useful in understanding stoichiometry and the conservation of mass in chemical equations. Each reaction involves balancing the number of atoms for each element on both sides of the equation to adhere to the law of conservation of mass.
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