What type of reaction is this? K:CrO« (aq) + Cu(CIO:)2 (aq)→ 2KCIO: (aq) + CuCro. (s) * Synthesis Decomposition Combustion Single Replacement Double Replacement

Chemistry
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ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
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Chapter1: Chemical Foundations
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**Chemical Reaction Type Identification**

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**Question:**

What type of reaction is this?

\[ \text{K}_2\text{CrO}_4 \text{(aq)} + \text{Cu(ClO}_3\text{)}_2 \text{(aq)} \rightarrow 2\text{KClO}_3 \text{(aq)} + \text{CuCrO}_4 \text{(s)} \]

**Options:**

1. **Synthesis**
2. **Decomposition**
3. **Combustion**
4. **Single Replacement**
5. **Double Replacement**

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**Answer Explanation:**

For this question, we need to determine the type of reaction based on the reactants and products given in the equation. 

From the balanced chemical equation:

\[ \text{K}_2\text{CrO}_4 \text{(aq)} + \text{Cu(ClO}_3\text{)}_2 \text{(aq)} \rightarrow 2\text{KClO}_3 \text{(aq)} + \text{CuCrO}_4 \text{(s)} \]

- **Reactants:** Potassium chromate (K₂CrO₄) and copper(II) chlorate (Cu(ClO₃)₂) in aqueous solution.
- **Products:** Potassium chlorate (2KClO₃) in aqueous solution and copper(II) chromate (CuCrO₄) as a solid.

In this reaction, the ions of two compounds are exchanged to form two new compounds, which is characteristic of a **Double Replacement Reaction**.

Thus, the correct type of reaction is:

**5. Double Replacement**
Transcribed Image Text:**Chemical Reaction Type Identification** --- **Question:** What type of reaction is this? \[ \text{K}_2\text{CrO}_4 \text{(aq)} + \text{Cu(ClO}_3\text{)}_2 \text{(aq)} \rightarrow 2\text{KClO}_3 \text{(aq)} + \text{CuCrO}_4 \text{(s)} \] **Options:** 1. **Synthesis** 2. **Decomposition** 3. **Combustion** 4. **Single Replacement** 5. **Double Replacement** --- **Answer Explanation:** For this question, we need to determine the type of reaction based on the reactants and products given in the equation. From the balanced chemical equation: \[ \text{K}_2\text{CrO}_4 \text{(aq)} + \text{Cu(ClO}_3\text{)}_2 \text{(aq)} \rightarrow 2\text{KClO}_3 \text{(aq)} + \text{CuCrO}_4 \text{(s)} \] - **Reactants:** Potassium chromate (K₂CrO₄) and copper(II) chlorate (Cu(ClO₃)₂) in aqueous solution. - **Products:** Potassium chlorate (2KClO₃) in aqueous solution and copper(II) chromate (CuCrO₄) as a solid. In this reaction, the ions of two compounds are exchanged to form two new compounds, which is characteristic of a **Double Replacement Reaction**. Thus, the correct type of reaction is: **5. Double Replacement**
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