Which of the following processes involves a chemical transformation? A) A sugar cube dissolving in a cup of hot tea B) Adding iodine crystals to CCl₄ C) Mixing an aqueous solution of NaOH with an aqueous solution of HCl D) Metallic gold dissolving in a small quantity of liquid mercury. E) Sodium metal dissolving in liquid ammonia

Question

Quizplus · Accepted Answer

Mixing an aqueous solution of NaOH with an aqueous solution of HCl is a chemical reaction known as a neutralization reaction. The reactants (NaOH and HCl) react to form a new substance (NaCl, or sodium chloride) and water. This involves a chemical transformation, unlike options A, B, D, and E which involve physical changes or mixtures without any chemical reactions occurring.

Which of the Following Processes Involves a Chemical Transformation