Describe the ph changes expected if an acid is used to neutralize a base with ph 12

By adding acid to a basic solution of pH 12, the overall solution becomes less basic and the Ph of solution decreases to a value of 7, which is known as the pH of a neutral solution, i.e neither basic nor acidic. This process is called neutralizing the base.

your parents i think this could be it

chemical digestion occurs in the stomach were hcl and pepsin forms chyme, the mouth in which salivary amylase breaks down starch to form bolus, and the small intestine specifically the duodenum.