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 complete 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 equation. Here, $\ce{K^{+}}$ and $\ce{NO^{-}_{3}}$ are present on both the reactant and product sides.

Answer:

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