Sure! Let's classify each of the given reactions step-by-step:
### Reaction (a)
[tex]\[ \text{CaO (s)} + \text{H}_2\text{O} \rightarrow \text{Ca(OH)}_2\text{(aq)} \][/tex]
1. Identify Reactants and Products:
- Reactants: Calcium oxide (CaO), Water (H₂O)
- Products: Calcium hydroxide (Ca(OH)₂)
2. Type of Reaction:
- In this reaction, calcium oxide reacts with water to form calcium hydroxide.
- This is an example of a combination reaction (synthesis reaction) because two simpler substances (CaO and H₂O) combine to form a more complex substance (Ca(OH)₂).
### Reaction (b)
[tex]\[ \text{Fe (s)} + \text{CuSO}_4\text{(aq)} \rightarrow \text{FeSO}_4\text{(aq)} + \text{Cu (s)} \][/tex]
1. Identify Reactants and Products:
- Reactants: Iron (Fe), Copper(II) sulfate (CuSO₄)
- Products: Iron(II) sulfate (FeSO₄), Copper (Cu)
2. Type of Reaction:
- In this reaction, iron displaces copper from copper sulfate, forming iron sulfate and copper.
- This is a single displacement reaction (single replacement reaction) because one element (Fe) displaces another element (Cu) from a compound (CuSO₄), resulting in the formation of a new element (Cu) and a new compound (FeSO₄).
### Reaction (c)
[tex]\[ \text{NH}_4\text{NO}_3\text{(s)} \rightarrow \text{N}_2\text{O (g)} + 2 \text{H}_2\text{O (g)} \][/tex]
1. Identify Reactants and Products:
- Reactant: Ammonium nitrate (NH₄NO₃)
- Products: Nitrous oxide (N₂O), Water (H₂O)
2. Type of Reaction:
- In this reaction, ammonium nitrate decomposes into nitrous oxide and water.
- This is a decomposition reaction because a single compound (NH₄NO₃) breaks down into multiple simpler products (N₂O and H₂O).
### Summary of Classifications:
- Reaction (a) is a combination reaction.
- Reaction (b) is a single displacement reaction.
- Reaction (c) is a decomposition reaction.
By examining the reactants and products along with the nature of how they interact or break apart, we've classified each reaction accordingly.
