Assuming that the proposed aqueous reactants are mixed in stoichiometric ratios,and at moderate concentrations,which of the following is least likely to represent an observable (e.g. ,gas evolution or precipitation)reaction? A)Ca²⁺ + 2 Cl^- + 2 K⁺ + CO₃^2- → ? B)2 Na⁺ + CO₃^2- + 2 HC₂N₃O₂ → ? C)H₂S + Cu²⁺ + SO₄^2- → ? D)H₂SO₃ + Li⁺ + Cl^- → ? E)Pb²⁺ + 2 NO₃^- + 2 Na⁺ + 2 OH^- → ?

Question

Quizplus · Accepted Answer

Option D involves the reaction of lithium hydroxide (LiOH) with hydrochloric acid (HCl) to form lithium chloride (LiCl) and water (H2O). This is a neutralization reaction between an acid and a base, which typically does not result in gas evolution or precipitation, making it the least likely to represent an observable reaction in terms of gas evolution or precipitation.

Assuming That the Proposed Aqueous Reactants Are Mixed in Stoichiometric