A student combined a solution of zinc bromide and silver nitrate. A precipitate formed. Which of the following represents a net ionic equation?
a. ZnBrâ(aq) + 2 AgNOâ(aq) â Zn(NOâ)â(aq) + 2 AgBr(s)
b. 2 Brâ»(aq) + 2 Agâș(aq) â 2 AgBr(s)
c. ZnÂČâș(aq)
d. Agâș(aq)