Respuesta :

• When Sodium Sulfate is mixed with Barium chloride, the following reaction occurs :

BaCl2 (aq) + Na2SO4 (aq) ------> BaSO4 ( s) + 2 NaCl( aq)

• a precipitate is the solid that forms, the white solide will be BaSO4

,

• So option 4 is correct. BaSo4.