Question

for the following reaction in aqueous solution, identify the species that will be spectator ions. select all that apply. sr(oh)₂+k₂s→2koh + srs choose one or more: a. s²⁻ b. sr(oh)2 c. k⁺ d. oh⁻ e. sr²⁺ f. srs g. koh h. k₂s

Explanation:

Step1: Write the complete ionic equation

In aqueous solution, $Sr(OH)_2$ dissociates into $Sr^{2 + }$ and $2OH^{-}$, $K_2S$ dissociates into $2K^{+}$ and $S^{2-}$, $KOH$ dissociates into $K^{+}$ and $OH^{-}$, and $SrS$ dissociates into $Sr^{2 + }$ and $S^{2-}$. The complete ionic equation is $Sr^{2+}+2OH^{-}+2K^{+}+S^{2 - }\longrightarrow 2K^{+}+2OH^{-}+Sr^{2+}+S^{2 - }$.

Step2: Identify spectator ions

Spectator ions are ions that appear on both sides of the ionic equation unchanged. Here, $K^{+}$ and $OH^{-}$ are present on both sides.

Answer:

C. $K^{+}$, D. $OH^{-}$