Write the net ionic equation for the precipitation of silver iodide from aqueous solution:?

1 Answer
Feb 17, 2018

#Ag^(+) + I^(-) rarr underbrace(AgI(s)darr)_"yellow precipitate"#

Explanation:

Silver halides are as soluble as bricks in aqueous solution. Silver chloride gives a curdy white salt; silver bromide gives a cream-coloured precipitate; and silver iodide gives a bright-yellow solid. All the halides are photoactive...and at one stage silver chloride was used as the basis for photographic film.

In the given equation both mass and charge are balanced, as is ABSOLUTELY required....the starting silver salt would probably be silver nitrate, #AgNO_3(aq)#, the which is a water-soluble salt. And the source of iodide anion could be #NaI(aq)#, or even #HI(aq)#.