Answer to Question #46334 in Inorganic Chemistry for sabir

Question

Explain the increasing thermal stability of the group 2 carbonates going down the group?

Answer 1

Among MgCO3, CaCO3, SrCO3, BaCO3 thermal stability increases. In a series of increasing temperature decarbonization. This is because in this direction is increased size of the cations and thus decrease their polarizing ability.