What is the chemical formula of the precipitate that forms when a solution of aluminum chloride is mixed with a solution of sodium hydroxide? A. AIOH В. АЦОН)з C. NaCI D. AICI3 A

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**Question:**

What is the chemical formula of the precipitate that forms when a solution of aluminum chloride is mixed with a solution of sodium hydroxide?

**Options:**

A. AlOH  
B. Al(OH)₃  
C. NaCl  
D. AlCl₃  

**Answer Choices:**

- **A**
- **B**
- **C**
- **D**

---

**Explanation:**

When aluminum chloride (AlCl₃) and sodium hydroxide (NaOH) are mixed, aluminum hydroxide (Al(OH)₃) forms as an insoluble precipitate. The balanced chemical reaction is:

\[ \text{AlCl}_3 + 3\text{NaOH} \rightarrow \text{Al(OH)}_3 \downarrow + 3\text{NaCl} \]

Therefore, the correct answer is **B. Al(OH)₃**. This occurs because aluminum ions (Al³⁺) react with hydroxide ions (OH⁻) to form aluminum hydroxide, which precipitates out of the solution as a solid.
Transcribed Image Text:**Question:** What is the chemical formula of the precipitate that forms when a solution of aluminum chloride is mixed with a solution of sodium hydroxide? **Options:** A. AlOH B. Al(OH)₃ C. NaCl D. AlCl₃ **Answer Choices:** - **A** - **B** - **C** - **D** --- **Explanation:** When aluminum chloride (AlCl₃) and sodium hydroxide (NaOH) are mixed, aluminum hydroxide (Al(OH)₃) forms as an insoluble precipitate. The balanced chemical reaction is: \[ \text{AlCl}_3 + 3\text{NaOH} \rightarrow \text{Al(OH)}_3 \downarrow + 3\text{NaCl} \] Therefore, the correct answer is **B. Al(OH)₃**. This occurs because aluminum ions (Al³⁺) react with hydroxide ions (OH⁻) to form aluminum hydroxide, which precipitates out of the solution as a solid.
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