Question

question 9 (1 point)
in the reaction, k₂so₄ + ba(no₃)₂ → baso₄ + 2kno₃, where equal moles of reactants are mixed together, which ions would be spectator ions in the solution?
○ k⁺ and no₃⁻
○ ba²⁺ and k⁺
○ k⁺ and so₄²-
○ ba²⁺ and no₃⁻
○ ba²⁺ and so₄²-

Explanation:

Step1: Write the total ionic equation

$$\ce{2K^{+}(aq) + SO^{2-}_{4}(aq) + Ba^{2+}(aq) + 2NO^{-}_{3}(aq) -> BaSO_{4}(s) + 2K^{+}(aq) + 2NO^{-}_{3}(aq)}$$

Step2: Identify spectator ions

Spectator ions are ions that appear on both sides of the ionic equation. In the above equation, $\ce{K^{+}}$ and $\ce{NO^{-}_{3}}$ are present on both sides.

Answer:

$\ce{K^{+}}$ and $\ce{NO^{-}_{3}}$