Question

combining aqueous solutions of bal₂ and na₂so₄ affords a precipitate of baso₄. which ions are spectator ions in the reaction?
na⁺ and i⁻
ba²⁺ and so₄²⁻
ba²⁺ only
na⁺ only
so₄²⁻ and i⁻
question 15
1 pts
a neutralization reaction between an acid and a metal hydroxide produces ________.
ammonia
sodium hydroxide
oxygen gas
hydrogen gas
water and a salt

Explanation:

Question 14

• First, write the balanced molecular equation: \(BaI_{2}(aq)+Na_{2}SO_{4}(aq)=BaSO_{4}(s)+2NaI(aq)\).
• Then, write the total ionic equation: \(Ba^{2 +}(aq)+2I^{-}(aq)+2Na^{+}(aq)+SO_{4}^{2 -}(aq)=BaSO_{4}(s)+2Na^{+}(aq)+2I^{-}(aq)\).
• Spectator ions are ions that do not participate in the formation of the precipitate. In this case, \(Na^{+}\) and \(I^{-}\) remain in solution and do not change.

• A neutralization reaction between an acid (\(H^{+}\)) and a metal hydroxide (\(M^{n+}OH^{-}\)) has the general form: \(H^{+}+OH^{-}=H_{2}O\) (water formation) and the cation from the metal hydroxide combines with the anion from the acid to form a salt (\(M^{n+}A^{-}\), where \(A^{-}\) is the anion from the acid).

Answer:

Na⁺ and I⁻

Question 15