The reaction`AgNO_3 + NaCl to AgCl + NaNO_3` is

Options

A. oxidation
B. reduction
C. decomposition
D. double decomposition

Explanation

To determine the type of reaction represented by the equation \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{AgCl} + \text{NaNO}_3 \), we can analyze the components and the process involved in the reaction step by step.

### Step 1: Identify the Reactants and Products
The reactants in this reaction are silver nitrate (\( \text{AgNO}_3 \)) and sodium chloride (\( \text{NaCl} \)). The products formed are silver chloride (\( \text{AgCl} \)) and sodium nitrate (\( \text{NaNO}_3 \)).

**Hint:** Look at the compounds involved to understand what is being formed and what is being broken down.

### Step 2: Analyze the Type of Reaction
This reaction involves the exchange of ions between the two compounds. In this case:
- The silver ion (\( \text{Ag}^+ \)) from silver nitrate combines with the chloride ion (\( \text{Cl}^- \)) from sodium chloride to form silver chloride (\( \text{AgCl} \)).
- The sodium ion (\( \text{Na}^+ \)) from sodium chloride combines with the nitrate ion (\( \text{NO}_3^- \)) from silver nitrate to form sodium nitrate (\( \text{NaNO}_3 \)).

**Hint:** Consider whether the ions are simply swapping partners, which is a key characteristic of double decomposition reactions.

### Step 3: Classify the Reaction
Given that the reaction involves the exchange of ions between two compounds, it fits the definition of a double decomposition reaction. In a double decomposition reaction, two compounds react to form two new compounds by exchanging their ions.

**Hint:** Recall the definitions of different types of reactions: oxidation, reduction, decomposition, and double decomposition. This will help you identify the correct classification.

### Conclusion
The reaction \( \text{AgNO}_3 + \text{NaCl} \rightarrow \text{AgCl} + \text{NaNO}_3 \) is classified as a **double decomposition reaction**.

**Final Answer:** The correct option is D: Double Decomposition.