Question

Balance double displacement reaction, including the phases for all reactants and products.

Answer 1

Reaction:

SrBr2 (aq) + 2 AgNO3 (aq) ==> 2 AgBr (s) + Sr(NO3)2 (aq) (balanced)

(Subindex 2 goes under NO3 ion, not under Br on the right side)

(aq) means aqueous

(s) solid, AgBr is a precipitate. Double replacement reactions give as a product generally a precipitate.

Answer: SrBr2 (aq) + 2 AgNO3 (aq) ==> 2 AgBr (s) + Sr(NO3)2 (aq)