It doesn't because pepper does not dissolve
There is a couple different ways to determine if a bond is ionic orcovalent. By definition, an ionicbond is between a metal and a nonmetal, and a covalent bond is between 2 nonmetals. So you usually just look at the periodic table and determine whether your compound is made of a metal/nonmetal or is just 2 nonmetals.
Chlorine is a halogen and all halogens and oxygen, nitrogen and hydrogen are diatomics
Feathers have more density and less have more mass, feather is super light and a POUND of led isnt