Calcium oxide, CaO, also known as quick lime, will react with carbon dioxide to form calcium carbonate, CaCO₃. Which species, if any, acts as a Lewis acid in the reaction? A)Ca ²⁺ B)O ²⁻ C)CO ₂ D)CaCO ₃ E)None of these choices are correct.

Question

Quizplus · Accepted Answer

CO2 acts as a Lewis acid in the reaction because it accepts a pair of electrons from another species (in this case, from the oxide ion, O2-) to form calcium carbonate, CaCO3.

Calcium Oxide, CaO, Also Known as Quick Lime, Will React