Polyatomic Ions Formula Sheet: bit.ly/4e9F2YT Final Exams and Video Playlists: www.video-tutor.net/ Full-Length Math & Science Videos: www.patreon.com/mathsciencetutor/collections
Professor Organic Chemistry Tutor, thank you for an outstanding explanation on How to Name Ionic Compounds in AP/General Chemistry. Pattern recognition can be used to learn this material from start to finish. This is an error free video/lecture on RU-vid TV with the Organic Chemistry Tutor.
Says in the video but usually it's when the anion part of the ionic compound has 4 (usually with oxygen as the anion) atoms per molecule makes it ate, and one less oxygen makes it ite. NO3 - is Nitrate, NO2 - is Nitrite But it isn't based on the number of anions on the end, since: PO4 ^ 3- is phosphate and... PO3 ^ 3- is phosphite. There are definitely exceptions but these are usually something you will see fairly often and it will stick with practice. Alternatively, you will google it like everyone else in the world once you're done being shit tested in academia.
I was confused at first too! Sulfur (not Silver) does have a -2 charge and we want to cancel it out! And although Calcium has only +1 charge... we have TWO atoms of Calcium that balance out the one atom of -2 Sulfur.