Predict the products for the following set of reactants. Li(s) + H₂O(l) → A)Li ⁺( aq)+ H ₂( g)+ O ₂( g) B)Li ⁺( aq)+ H ₂( g)+ OH ⁻( aq) C)LiH( s)+ O ₂( g) D)Li ⁺( aq)+ H ₂O ₂( aq) E)LiOH( aq)+ H ₂O ₂( aq)

Question

Quizplus · Accepted Answer

The reaction between Li and H2SO4 will liberate hydrogen gas and form LiHSO4 (lithium hydrogen sulfate) as the product which will dissociate to form Li+ and HSO4- ions in aqueous solution. The reaction between Li+ and OH- ions in aqueous solution will form LiOH. Hence, the overall reaction can be written as:
Li(s) + H2SO4(l) → LiHSO4(aq) + H2↑
LiHSO4(aq) → Li+(aq) + HSO4-(aq)
Li+(aq) + OH-(aq) → LiOH(aq)
Therefore, the correct choice is B. LiOH(aq) and HSO4-(aq) are the products formed in this reaction.

Predict the Products for the Following Set of Reactants