Question

list any two of us in that help us to determine whether a chemical reaction has taken place with the help of a chemical equation for what happens when given ferrous sulphate crystals are heated identify the type of reaction

Answer 1

When ferrous sulphate crystals are heated, it lose water and the colour of the crystals change. It then decomposes to ferric oxide, sulphur dioxide, and sulphur trioxide. The change in the colour of the crystals and the evolution of the gases SO2 and SO3 show that a chemical reaction has taken place.