Question

Q1 when a green iron salt is heated strongly its colour finally changes to black and odour of burning sulphur is given out. a) name the iron salt b)name the type of reaction that takes place during heating of iron salt c)write the chemical equation of the reaction involved

Answer 1

A) the salt is fe2so4
B) it is a decomposition reaction
C) fe2so4->fe2o3+so2+so3

Answer 2

a. ferrous sulphate/ b. thermal Decomposition reaction
c.FE2SO4.7H2O-----> FE2SO4 + 7H2O
FE2SO4-------> FE2O3 + SO2 + SO3