AP Chemistry
4.9 Oxidation-Reduction (Redox) Reactions
4.4 Physical and Chemical Changes
A student investigates two different processes involving sodium chloride, \(\text{NaCl}\):
Process 1: Solid sodium chloride dissolves in water at \(25\ ^\circ\text{C}\):
\[ \text{NaCl}(s) \rightarrow \text{Na}^+(aq) + \text{Cl}^-(aq) \]
Process 2: Molten sodium chloride undergoes electrolysis at \(850\ ^\circ\text{C}\):
\[ 2\,\text{NaCl}(l) \rightarrow 2\,\text{Na}(l) + \text{Cl}_2(g) \]
Which of the following correctly classifies Process 2 and provides the best justification?
Process 1: Solid sodium chloride dissolves in water at \(25\ ^\circ\text{C}\):
\[ \text{NaCl}(s) \rightarrow \text{Na}^+(aq) + \text{Cl}^-(aq) \]
Process 2: Molten sodium chloride undergoes electrolysis at \(850\ ^\circ\text{C}\):
\[ 2\,\text{NaCl}(l) \rightarrow 2\,\text{Na}(l) + \text{Cl}_2(g) \]
Which of the following correctly classifies Process 2 and provides the best justification?
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