When phosphine is bubbled through a solution of silver nitrate ___ is precipitated.

Answer

To solve the question, we need to analyze the reaction that occurs when phosphine (PH₃) is bubbled through a solution of silver nitrate (AgNO₃). Here’s a step-by-step breakdown of the solution:

### Step 1: Identify the Reactants
- **Phosphine (PH₃)**: This is the compound that will react with silver nitrate.
- **Silver Nitrate (AgNO₃)**: This is the solution through which phosphine is bubbled.

**Hint**: Recognize the chemical formulas of the reactants involved in the reaction.

### Step 2: Understand the Reaction
When phosphine is bubbled through silver nitrate solution, it can dissociate into its ions:
- Phosphine (PH₃) can be represented as producing phosphide ions (P³⁻) and hydrogen ions (H⁺).
- Silver nitrate (AgNO₃) dissociates into silver ions (Ag⁺) and nitrate ions (NO₃⁻).

**Hint**: Consider how each compound breaks down into its constituent ions in solution.

### Step 3: Write the Ionic Equation
The ions that are formed in the solution are:
- From PH₃: P³⁻ and H⁺
- From AgNO₃: Ag⁺ and NO₃⁻

The relevant reaction can be written as:
\[ \text{3Ag}^+ + \text{P}^{3-} \rightarrow \text{Ag}_3\text{P} \]

**Hint**: Focus on how the cations and anions interact to form a precipitate.

### Step 4: Identify the Precipitate
The combination of silver ions (Ag⁺) and phosphide ions (P³⁻) leads to the formation of silver phosphide (Ag₃P), which is a solid precipitate. The other product formed in this reaction is nitric acid (HNO₃) from the remaining ions (H⁺ and NO₃⁻).

**Hint**: Remember that a precipitate is a solid that forms from a solution during a chemical reaction.

### Step 5: Conclusion
When phosphine is bubbled through a solution of silver nitrate, the precipitate formed is silver phosphide (Ag₃P).

**Final Answer**: Silver phosphide (Ag₃P) is precipitated.

---