The video for naming acids will refer to a polyatomic ions table. It is important to familiarize yourself with these ions before beginning. Below is a list of common polyatomic ions. Remember that poly means many so this table is used when there are more than two elements in the acid.
Source: Jennifer Roushar; Image from: http://www.iun.edu/~cpanhd/C101webnotes/chemical-nomenclature/polyatomsalts.html
Source: Jennifer Roushar
Source: Jennifer Roushar