$$ \begin{array}{l} ext { Match the following. } \ \qquad \begin{array}{ll}2 \mathrm{KOH}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{aq}) ightarrow \ \mathrm{K}_{2} \mathrm{SO}_{4}(\mathrm{aq})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})\end{array} \ \begin{array}{l} ext { 1. acid base } \ 2 \mathrm{NaNO}_{3}(\mathrm{aq})+\mathrm{CaCl}_{2}(\mathrm{aq}) \ ightarrow 2 \mathrm{NaCl}_{(\mathrm{aq})}+ \ \mathrm{Ca}\left(\mathrm{NO}_{3} ight)_{2}(\mathrm{aq})\end{array} \ \begin{array}{l} ext { 2. combustion }\end{array} \ \begin{array}{l}\mathrm{C}_{6} \mathrm{H}_{8}(\mathrm{~g})+5 \mathrm{O}_{2}(\mathrm{~g}) ightarrow 3 \mathrm{CO}_{2} \ (\mathrm{~g})+4 \mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \ 10 \mathrm{Rb}(\mathrm{s})+\mathrm{RbNO}_{3}(\mathrm{aq}) ightarrow 6 \ \mathrm{Rb}_{2} \mathrm{O}(\mathrm{aq})+\mathrm{N}_{2}(\mathrm{~g})\end{array} \ ext { 3. single displacement }\end{array} $$ 4. precipitation $$ \left.\begin{array}{l} ext { 5. no reaction }\end{array} ight] $$

Question

$$ \begin{array}{l}	ext { Match the following. } \ \qquad \begin{array}{ll}2 \mathrm{KOH}(\mathrm{aq})+\mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{aq}) ightarrow \ \mathrm{K}_{2} \mathrm{SO}_{4}(\mathrm{aq})+2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})\end{array} \ \begin{array}{l}	ext { 1. acid base } \ 2 \mathrm{NaNO}_{3}(\mathrm{aq})+\mathrm{CaCl}_{2}(\mathrm{aq}) \ ightarrow 2 \mathrm{NaCl}_{(\mathrm{aq})}+ \ \mathrm{Ca}\left(\mathrm{NO}_{3}ight)_{2}(\mathrm{aq})\end{array} \ \begin{array}{l}	ext { 2. combustion }\end{array} \ \begin{array}{l}\mathrm{C}_{6} \mathrm{H}_{8}(\mathrm{~g})+5 \mathrm{O}_{2}(\mathrm{~g}) ightarrow 3 \mathrm{CO}_{2} \ (\mathrm{~g})+4 \mathrm{H}_{2} \mathrm{O}(\mathrm{g}) \ 10 \mathrm{Rb}(\mathrm{s})+\mathrm{RbNO}_{3}(\mathrm{aq}) ightarrow 6 \ \mathrm{Rb}_{2} \mathrm{O}(\mathrm{aq})+\mathrm{N}_{2}(\mathrm{~g})\end{array} \ 	ext { 3. single displacement }\end{array} $$ 4. precipitation $$ \left.\begin{array}{l}	ext { 5. no reaction }\end{array}ight] $$

UpStudy AI · Accepted Answer

To match the given chemical reactions with their corresponding types, we will analyze each reaction step by step.

1. **First Reaction:**
   $$
   2 \mathrm{KOH}(\mathrm{aq}) + \mathrm{H}_{2} \mathrm{SO}_{4}(\mathrm{aq}) \rightarrow \mathrm{K}_{2} \mathrm{SO}_{4}(\mathrm{aq}) + 2 \mathrm{H}_{2} \mathrm{O}(\mathrm{l})
   $$
   - This reaction involves an acid ($$\mathrm{H}_{2} \mathrm{SO}_{4}$$) reacting with a base ($$\mathrm{KOH}$$) to produce a salt ($$\mathrm{K}_{2} \mathrm{SO}_{4}$$) and water. 
   - **Type:** 1. acid base

2. **Second Reaction:**
   $$
   2 \mathrm{NaNO}_{3}(\mathrm{aq}) + \mathrm{CaCl}_{2}(\mathrm{aq}) \rightarrow 2 \mathrm{NaCl}_{(\mathrm{aq})} + \mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}(\mathrm{aq})
   $$
   - This reaction involves the exchange of ions between two compounds, resulting in the formation of two new compounds. This is characteristic of a double displacement reaction.
   - **Type:** 4. precipitation (if a precipitate forms, otherwise it can also be classified as double displacement)

3. **Third Reaction:**
   $$
   \mathrm{C}_{6} \mathrm{H}_{8}(\mathrm{g}) + 5 \mathrm{O}_{2}(\mathrm{g}) \rightarrow 3 \mathrm{CO}_{2}(\mathrm{g}) + 4 \mathrm{H}_{2} \mathrm{O}(\mathrm{g})
   $$
   - This reaction involves a hydrocarbon ($$\mathrm{C}_{6} \mathrm{H}_{8}$$) reacting with oxygen to produce carbon dioxide and water, which is characteristic of combustion reactions.
   - **Type:** 2. combustion

4. **Fourth Reaction:**
   $$
   10 \mathrm{Rb}(\mathrm{s}) + \mathrm{RbNO}_{3}(\mathrm{aq}) \rightarrow 6 \mathrm{Rb}_{2} \mathrm{O}(\mathrm{aq}) + \mathrm{N}_{2}(\mathrm{g})
   $$
   - This reaction involves a single element ($$\mathrm{Rb}$$) displacing another element in a compound ($$\mathrm{RbNO}_{3}$$), resulting in the formation of a new compound and a gas.
   - **Type:** 3. single displacement

5. **Fifth Reaction:**
   - The problem does not provide a fifth reaction, but we can assume that if there were no observable changes or products, it would be classified as "no reaction."
   - **Type:** 5. no reaction

### Summary of Matches:
1. $$2 \mathrm{KOH} + \mathrm{H}_{2} \mathrm{SO}_{4} \rightarrow \mathrm{K}_{2} \mathrm{SO}_{4} + 2 \mathrm{H}_{2} \mathrm{O}$$ - **1. acid base**
2. $$2 \mathrm{NaNO}_{3} + \mathrm{CaCl}_{2} \rightarrow 2 \mathrm{NaCl} + \mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2}$$ - **4. precipitation**
3. $$\mathrm{C}_{6} \mathrm{H}_{8} + 5 \mathrm{O}_{2} \rightarrow 3 \mathrm{CO}_{2} + 4 \mathrm{H}_{2} \mathrm{O}$$ - **2. combustion**
4. $$10 \mathrm{Rb} + \mathrm{RbNO}_{3} \rightarrow 6 \mathrm{Rb}_{2} \mathrm{O} + \mathrm{N}_{2}$$ - **3. single displacement**
5. (Assumed) - **5. no reaction** (if applicable)
1. Acid base 2. Precipitation 3. Combustion 4. Single displacement 5. No reaction

4. precipitation

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Summary of Matches:

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