Identify the precipitate in this reaction:AgNO3 (aq) + NaCl (aq) → AgCl (s) + NaNO3 (aq)

Step 1: Break Down the Problem

To identify the precipitate in the given chemical reaction, we need to analyze the products formed from the reactants.

Step 2: Relevant Concepts

In a double displacement reaction, when two aqueous solutions of soluble salts are mixed, an insoluble product (precipitate) may form. The general rule is that if a salt is not soluble in water, it will precipitate out of the solution.

Step 3: Analysis and Detail

1. Given Reaction: $\text{AgNO}_3 (aq) + \text{NaCl} (aq) \rightarrow \text{AgCl} (s) + \text{NaNO}_3 (aq)$

2. Identifying Reactants:

   • Silver nitrate (AgNO₃) is soluble in water.
   • Sodium chloride (NaCl) is also soluble in water.

3. Identifying Products:

   • Silver chloride (AgCl) is known to be insoluble in water; therefore, it will precipitate.
   • Sodium nitrate (NaNO₃) is soluble in water.

Step 4: Verify and Summarize

In the reaction, the formation of AgCl (s) indicates that it is the precipitate, as it cannot stay dissolved in the aqueous phase, unlike the other reactants and products.

Final Answer

The precipitate in the reaction is AgCl (s).