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Ch.19 - Electrochemistry
Chapter 19, Problem 83c

What reaction can occur, if any, when the following experiments are carried out under standard-state conditions? (c) A silver wire is immersed in an aqueous solution of NiCl2.

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Key Concepts

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

Standard-State Conditions

Standard-state conditions refer to a set of specific conditions used to measure the properties of substances. These typically include a temperature of 25°C (298 K), a pressure of 1 atm, and concentrations of 1 M for solutions. Understanding these conditions is crucial for predicting the behavior of chemical reactions and the feasibility of reactions under specified circumstances.
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Standard Reduction Potentials

Electrochemical Reactions

Electrochemical reactions involve the transfer of electrons between species, often occurring in redox (reduction-oxidation) processes. In the context of the silver wire and NiCl2 solution, it is important to consider the standard reduction potentials of silver and nickel ions to determine if a spontaneous reaction can occur. The relative positions of these potentials dictate whether one metal can displace another from its ionic form.
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Displacement Reactions

Displacement reactions occur when a more reactive element displaces a less reactive element from its compound. In this scenario, if silver (Ag) is more reactive than nickel (Ni) in the context of their respective ions, a reaction will take place where silver ions are produced, and nickel is deposited. Understanding the reactivity series of metals is essential for predicting the outcome of such reactions.
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Single Displacement Reactions