6.65 mL of 0.015 M NaOH is used to titrate 40 mL of an HCl solution. Calculate the concentration (molarity) of the HCl solution.

i would say b

explanation:

but i think i would need more information than that

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.

every chemical equation adheres to the law of conservation of mass, which states that matter cannot be created or destroyed. therefore, there must be the same number of atoms of each element on each side of a chemical equation.