Na₂S (aq) + FeCl₂ (aq) KOH(aq) + HBrO4 (aq) reaction 2 NaCl(aq) + FeS (s) - K BrO4 (aq) + H₂O (1) CH₂CH₂CH₂(g) + 50₂(g) → 3CO₂(g) + 4H₂O(g) 4Na (s) + O₂(g) · 2Na₂0 (s) type of reaction (check all that apply) O combination O single replacement double replacement O decomposition O combination O single replacement O double replacement decomposition O combination 00 decomposition O precipitation O combustion acid-base precipitation O single replacement O combustion double replacement acid-base O combination O single replacement O double replacement decomposition O precipitation combustion O acid-base precipitation O combustion O acid-base

Chemistry
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Chapter1: Chemical Foundations
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### Reaction Types and Classification

Below is a table listing various chemical reactions. Each reaction can be classified by its type, and you can select all types that apply. 

| **Reaction** | **Type of Reaction** (check all that apply) |
|--------------|--------------------------------------------|
| \( \text{Na}_2\text{S (aq)} + \text{FeCl}_2 \text{ (aq)} \rightarrow 2\text{NaCl (aq)} + \text{FeS (s)} \) | ☐ combination <br> ☐ single replacement <br> ☑ double replacement <br> ☐ decomposition <br> ☑ precipitation <br> ☐ combustion <br> ☐ acid-base |
| \( \text{KOH (aq)} + \text{HBrO}_4 \text{ (aq)} \rightarrow \text{KBrO}_4 \text{ (aq)} + \text{H}_2\text{O (l)} \) | ☐ combination <br> ☐ single replacement <br> ☑ double replacement <br> ☐ decomposition <br> ☐ precipitation <br> ☐ combustion <br> ☑ acid-base |
| \( \text{CH}_3\text{CH}_2\text{CH}_3 \text{ (g)} + 5\text{O}_2 \text{ (g)} \rightarrow 3\text{CO}_2 \text{ (g)} + 4\text{H}_2\text{O (g)} \) | ☐ combination <br> ☐ single replacement <br> ☐ double replacement <br> ☐ decomposition <br> ☐ precipitation <br> ☑ combustion <br> ☐ acid-base |
| \( 4\text{Na (s)} + \text{O}_2 \text{ (g)} \rightarrow 2\text{Na}_2\text{O (s)} \) | ☑ combination <br> ☐ single replacement <br> ☐ double replacement <br> ☐ decomposition <br> ☐ precipitation <br> ☐ combustion <br> ☐ acid-base |

### Explanation:

1. **Double Replacement & Precipitation Reaction:**
   - **Example:** \( \text{Na}_2\text{S (aq)} + \text{FeCl
Transcribed Image Text:### Reaction Types and Classification Below is a table listing various chemical reactions. Each reaction can be classified by its type, and you can select all types that apply. | **Reaction** | **Type of Reaction** (check all that apply) | |--------------|--------------------------------------------| | \( \text{Na}_2\text{S (aq)} + \text{FeCl}_2 \text{ (aq)} \rightarrow 2\text{NaCl (aq)} + \text{FeS (s)} \) | ☐ combination <br> ☐ single replacement <br> ☑ double replacement <br> ☐ decomposition <br> ☑ precipitation <br> ☐ combustion <br> ☐ acid-base | | \( \text{KOH (aq)} + \text{HBrO}_4 \text{ (aq)} \rightarrow \text{KBrO}_4 \text{ (aq)} + \text{H}_2\text{O (l)} \) | ☐ combination <br> ☐ single replacement <br> ☑ double replacement <br> ☐ decomposition <br> ☐ precipitation <br> ☐ combustion <br> ☑ acid-base | | \( \text{CH}_3\text{CH}_2\text{CH}_3 \text{ (g)} + 5\text{O}_2 \text{ (g)} \rightarrow 3\text{CO}_2 \text{ (g)} + 4\text{H}_2\text{O (g)} \) | ☐ combination <br> ☐ single replacement <br> ☐ double replacement <br> ☐ decomposition <br> ☐ precipitation <br> ☑ combustion <br> ☐ acid-base | | \( 4\text{Na (s)} + \text{O}_2 \text{ (g)} \rightarrow 2\text{Na}_2\text{O (s)} \) | ☑ combination <br> ☐ single replacement <br> ☐ double replacement <br> ☐ decomposition <br> ☐ precipitation <br> ☐ combustion <br> ☐ acid-base | ### Explanation: 1. **Double Replacement & Precipitation Reaction:** - **Example:** \( \text{Na}_2\text{S (aq)} + \text{FeCl
Expert Solution
Step 1: classification of type of each given chemical reactions

Given,

The reactions are:

                                   Reaction               Reaction Type 
Na2S(aq) + FeCl2 (aq)  → 2 NaCl(aq) + FeS(s)


KOH(aq) + HBrO4 (aq) → KBrO4 (aq) + H2O(l)


CH3CH2CH3 (g) + 5 O2 (aq)  → 3 CO2 (g) + 4H2O (g)


4 Na(s) + O2 (g)  rightwards arrow  2 Na2O(s)


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