Question

3/15
what is the result of the reaction between potassium bromide and ammonium sulfide?
ammonium bromide precipitates
no precipitate is formed
potassium sulfide precipitates
potassium ammonium precipitates

Explanation:

This is a double displacement reaction. Potassium bromide ($KBr$) and ammonium sulfide $((NH_4)_2S)$ are both soluble in water. When mixed, the potential products are potassium sulfide ($K_2S$) and ammonium bromide ($NH_4Br$), which are also fully soluble in aqueous solution. No insoluble substance (precipitate) is formed.

Answer:

B. no precipitate is formed