The mass of a solid substance is 21.1164 g. If the volume of the solid substance is 19.9 cm3, calculate the density of the
substance with the correct number of significant digits.

The density of the  substance is 1.0611

Explanation:

The density of a substance is a characteristic property that matter, whether solids, liquids or gases, has to be compressed in a given space, that is, it allows us to measure the amount of mass in a certain volume of a substance.

Density is expressed as follows:

In this case:

Replacing:

density= 1.0611

The density of the  substance is 1.0611

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.