Write a balanced equation for the reduction half-reaction in this process.

To write the balanced equation for the reduction half-reaction in the given process, we focus on the species being reduced. In the reaction:

\[ 2 \text{Cu} (s) + \text{Cl}_2 (aq) \rightarrow 2 \text{CuCl} (s) \]

Chlorine (\(\text{Cl}_2\)) is the species being reduced. Let's outline the reduction half-reaction:

### Reduction Half-Reaction:

1. **Identify the reduction process:**
Chlorine (\(\text{Cl}_2\)) is reduced from an oxidation state of 0 to -1 in \(\text{CuCl}\). 

2. **Write the unbalanced half-reaction:**
\[ \text{Cl}_2 (aq) \rightarrow \text{Cl}^- (aq) \]

3. **Balance the atoms:**
Chlorine molecules consist of two atoms, so the balanced half-reaction is:
\[ \text{Cl}_2 (aq) \rightarrow 2 \text{Cl}^- (aq) \]

4. **Balance the charges by adding electrons:**
Each chlorine atom gains one electron to become \(\text{Cl}^-\). Therefore, for two chlorine atoms, two electrons are needed:
\[ \text{Cl}_2 (aq) + 2 e^- \rightarrow 2 \text{Cl}^- (aq) \]

Thus, the balanced reduction half-reaction is:
\[ \text{Cl}_2 (aq) + 2 e^- \rightarrow 2 \text{Cl}^- (aq) \]

Would you like further details or have any questions?

Here are 5 numbered questions you might consider asking next:
1. How do you determine the reducing agent in a redox reaction?
2. What are the steps to balance a redox reaction in a basic solution?
3. Can you explain the concept of oxidation states with more examples?
4. How does the electrochemical series help in predicting redox reactions?
5. What are some industrial applications of redox reactions?

**Tip:** When writing half-reactions, ensure that both the number of atoms and the charge are balanced by adding appropriate coefficients and electrons.

Learn how to write a balanced equation for the reduction half-reaction in a redox process. Understand the steps involved in identifying the species being reduced, balancing atoms, and adjusting charges with electrons. Suitable for advanced high school students and chemistry enthusiasts.

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