Solution of Ba(NO3)2 reacts with K2SO4

Question

What precipitate forms and the spectator ions that remain in the solution following reaction.

Answer 1

This is a double substitution reaction, so the Ba ions bond with the SO4 ions, and the K ions bond with the NO3 ions. Therefore, the reaction equation is

Ba(NO3)2 + K2SO4 -> BaSO4 + 2KNO3

Nitrate (NO3-) salts are generally soluble in water, so potassium nitrate is actually present as K+ and NO3- ions.

Therefore, the precipitate formed is BaSO4, while the spectator ions are K+ and NO3-