Question

(i) Write the names of reactants and products for the reaction: \[ \text{Fe} + \text{CuSO}_4 \rightarrow \text{FeSO}_4 + \text{Cu} \downarrow \]
(ii) Give one example of a thermal decomposition reaction (only equation for the reaction).

Hint:

Thermal decomposition reactions typically involve heating a compound to break it into simpler products, such as when heating calcium carbonate to form calcium oxide and carbon dioxide.

Answer 1

(i) Reactants and Products for the given reaction:
The given chemical reaction is: \[ \text{Fe} + \text{CuSO}_4 \rightarrow \text{FeSO}_4 + \text{Cu} \downarrow \] - Reactants:
- Iron (Fe)
- Copper(II) sulfate (CuSO₄)
- Products:
- Iron(II) sulfate (FeSO₄)
- Copper (Cu) (precipitate)

(ii) Example of Thermal Decomposition Reaction:
Thermal decomposition reactions involve the breakdown of a compound into two or more products when heated. An example of such a reaction is: \[ \text{CaCO}_3 \xrightarrow{\Delta} \text{CaO} + \text{CO}_2 \] This is the decomposition of calcium carbonate (CaCO₃) into calcium oxide (CaO) and carbon dioxide (CO₂) upon heating.
Conclusion:
1. The reactants for the given reaction are iron (Fe) and copper(II) sulfate (CuSO₄), and the products are iron(II) sulfate (FeSO₄) and copper (Cu).
2. An example of a thermal decomposition reaction is the breakdown of calcium carbonate into calcium oxide and carbon dioxide.