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Ch.4 - Reactions in Aqueous Solution
Chapter 4, Problem 13

Identify the element that gets oxidized and the oxidizing agent in the reaction. (LO 4.19) (a) (b) (c) (d)

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Oxidation and Reduction

Oxidation and reduction are chemical processes that involve the transfer of electrons between substances. Oxidation refers to the loss of electrons, while reduction refers to the gain of electrons. In a redox reaction, one species is oxidized and another is reduced, which is essential for understanding how these reactions occur.
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Oxidizing Agent

An oxidizing agent is a substance that facilitates oxidation by accepting electrons from another species. It is itself reduced in the process. Identifying the oxidizing agent is crucial in redox reactions, as it helps to determine which element is undergoing oxidation and the overall electron flow in the reaction.
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Identifying Oxidation States

Oxidation states (or numbers) are assigned to elements in a compound to indicate their degree of oxidation or reduction. By analyzing the changes in oxidation states of the elements involved in a reaction, one can determine which element is oxidized (increased oxidation state) and which is reduced (decreased oxidation state). This is a fundamental step in identifying the oxidizing agent.
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Related Practice
Textbook Question
What volume of 0.250 M HCl is needed to react completely with 25.00 mL of 0.375 M Na2CO3? (LO 4.15) (a) 75.0 mL (b) 18.8 mL (c) 37.5 mL (d) 33.3 mL
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Textbook Question
Succinic acid, an intermediate in the metabolism of food molecules, has a molecular weight of 118.1. When 1.926 g of succinic acid was dissolved in water and titrated, 65.20 mL of 0.5000 M NaOH solution was required to neutralize the acid. How many acidic hydrogens are there in a mol-ecule of succinic acid? (LO 4.16) (a) 1 (b) 2 (c) 3 (d) 4
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Textbook Question
Assign oxidation numbers to each atom in Borax, Na2B4O7, a mineral used in laundry detergent. (LO 4.18)
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Textbook Question
The most strongly reducing elements are listed at the top of the partial activity series table provided. Use the activity series to predict which reaction will occur. (LO 4.20) (a) (b) (c) (d)

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Textbook Question
The concentration of a solution of potassium permanganate, KMnO4, can be determined by titration with a known amount of oxalic acid, H2C2O4, according to the following equation: What is the concentration of a KMnO4 solution if 22.35 mL reacts with 0.5170 g of oxalic acid? (LO 4.22) (a) 0.6423 M (b) 0.1028 M (c) 0.4161 M (d) 0.2569 M
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Textbook Question

Box (a) represents 1.0 mL of a solution of particles at a given concentration. Which of the boxes (b)–(d) represents 1.0 mL of the solution that results after (a) has been diluted by doubling the volume of its solvent? (a)

(b)

(c)

(d)

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