The nucleus of an atom is positively charged​

It's because of the presence of protons.

Explanation:

A nucleus of an atom has protons and neutrons. We know that a proton has a charge of

+

1

, while a neutron has no charge, or

0

. Therefore, the nucleus of an atom will always have a positive charge.

answer: c.

explanation:

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.