Ferrous sulfate decomposes with the evolution of a gas having a characteristic odor of burning sulfur. Write the chemical reaction involved and identify the type of reaction.
Ferrous sulfate decomposes with the evolution of a gas having a characteristic odor of burning sulfur. Write the chemical reaction involved and identify the type of reaction.

Answer: When heated, ferrous sulfate decomposes into ferric oxide, sulphur dioxide, and sulphur trioxide, which are all toxic. Using this balanced equation, we can express the thermal decomposition reaction as: $2FeSO_4 (s)+heat \to Fe_2O_3 (s)+SO_2 (g)+SO_3 (g)