Answer to Question #143996 in General Chemistry for Javier

Question

can you determine whether a solid forms when solutions containing the following salts are mixed.

AgNO3 and K2S

yes

no

Answer 1

When these two compounds are mixed in a solution, a substitution reaction will take place in which the potassium ion will replace the silver ion and form potassium nitrate and silver sulfide will be formed. Silver sulfide is insoluble in water, so it will form a solid.

$2Ag_+ + 2NO_3 + 2K_+ + S^-2\to Ag_2S+ 2KNO_3$