How can the reaction KBr + AgNO3 -> AgBr + KNO3 be classified?
This is a double replacement precipitation reaction.
Your equation is
KBr(aq) + AgNO₃(aq) → AgBr(s) + KNO₃(aq)
Two soluble ionic compounds, KBr and AgNO₃, have reacted to form the insoluble compound, AgBr.
The metal ions K⁺ and Ag⁺ have exchanged partners, so this is a double replacement reaction.
Also, two soluble reactants have formed an insoluble product, so this is a precipitation reaction.
The AgBr appears as a creamy white precipitate.