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Bonding: How to Name Ionic and Covalent Molecular Compounds

Added Nov 23, 2015 •

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no everyone this is mr. Causey coming to you from my studios in beautiful Atascocita Texas and today I'm coming to you with another lesson on chemistry and today is an exciting one cuz we're going to learn to do chemical nomenclature and that's just a fancy way of saying real learn to name the compounds I'm excited about this lesson because if you'll buy him to my system you don't have to memorize a whole bunch of names or whole bunch of things to learn to name hundreds if not thousands of chemical names all you have to do is run a fusion processes in general rules and you'll be naming hundreds if not thousands of chemical compounds so without further Ado let's get started in this lesson you will learn numeric prefixes The non-metallic Roots common ions polyatomic Lance and naming compounds you will need of course a periodic table unless you've memorized it and it's great and you will need play Atomic ions table and a little later this lesson I'll show you how you can get that if you don't have one  and you must know oxidation numbers covalent compounds ionic compounds and the periodic table this is kind of something we need to know so that we can name are chemicals properly  when the first things that we need to know about is the common metallic roots and you want to make some flash cards or something to learn these and they're also going to be listed on the Potomac ion cheat sheet that I put together and in a little bit I'll show you how to get that okay what we want to build a look at these here the common metallic roots and you just kind of look at those really pay attention to the sulfur and the phosphorus a rich cuz really they're almost really not a but the name and it used to be that they used to solve and Foss but I've never turn anything in the names that didn't use the full sulfur and phosphorus are numeric prefixes are very important now remember we only use new Mary prefixes with a covalent compound but we need to know these okay so we have mono di Tri Penta hexa hepta OCTA Nana and deca the common metallic ions now these all the metallic guys are more I think I've even listed more on the cheat sheet these are the most common ones that I use a lot and so you will tune and the you know about him the better you're going to be at naming compounds probably time accounts covalent bonded elements that act as a unit I have a charge now these are what I like to think of as elements of come together and instead of being a compound they think they're in element so they act as one unit and we treat them as one unit in most cases your some examples hydroxide on the carbonate ion and then radon and there are many more and write this down if you need to come punch on sheet a little cheat sheet I put together what up here at polyatomic ions PDF just copy this whole URL and put it into your browser and I'll take you there and if that Port be sure to just send me an email at mr. Causey at mr. Causey. General for naming compounds most compounds are binary this means that they are two parts so that turn number one thing to be thinking about their in this General most compounds are binary there made up of two parts where is hydrogen and oxygen to parts and even those with polyatomic ions they're still really two parts of the pot Atomic Island and the ion that they've attached to so keep that in mind and it's all just two parts naming ionic compounds write the full name of the cat on and use the root of the Anaheim and ad-id that's pretty easy you take the full name of the cation  and then you take the route of the anion  and then add IDE here's an example sodium can chlorine come together and make sodium there's the cat on chloride the charges of an ionic compound must balance to zero what's the sodium has a plus one and the chlorine has a -1 + + 1 + -1 is 0 so we don't have to add any extras they balanced perfectly Walla metal ions with multiple charges the oxidation numbers of the metal is indicated by a Roman numeral in parentheses some of those like copper If copper 1 or copper 2 and we designate the difference between them by using Roman numerals and their names apples have iron to which means the two in the parentheses means is supposed to charge and that you just have to remember eyes that or look it up on your sheet play Barn three really that simple copper one  copper II  Jessie 203 notice that the charge in the oxygen is 3 * -2 which is -6 remember that the charges have to balance to zero and so the iron what's the I'm going to be well take -6 in / 2 and we realize that that whole charge on the iron has to be + 6  so divided what's 6 by 2 and get + 3 do we have iron 3 oxide the atomic bombs are treated as a single unit and you must know the charge of the ion DC there ammonium nh4 is a plus one charge so nh4 is a plus 1 carbonate is a -2 they don't balance so too bounce it out we make sure that we add to ammonium notice that we had to ammonium up there to make sure that it's balanced ammonium carbonate covalent compounds  naming covalent compounds and of course that's the same as molecular compounds use the full name of the Mormon What followed by the root of the less metallic and add IDE to the root use prefixes to show how many remember we only use Play Perfect on covalent compounds with molecular compounds or the covalent compounds we use numeric prefixes as you go left to right the less metallic so the left side is metallic and the right side is non-metallic keep that in mind carbon is more metallic so put carbon down oxygen is less metallic so we have oxide knows who took the ox that's the prefix of the oxygen add IDE and carbon oxide but there's two of them so it's carbon dioxide teleconnection can you name that can I put it up there can I change the more metallic oxygen is the less metallic but there are two nitrogen denied and there are for oxygen oxide no no we dropped the a whenever we end up with an a and o next to each will usually drop the a  practice time doctor today what is practices how about sf6 did you get sulfur hexafluoride  can you get lithium hydride three interesting about lithium hydride this is a case where a hydrogen is actually a negative instead of a positive charge play hydrogen bonds with the metal it takes on the anion instead of the cata what about this one ammonium nitrate to pie Tomic ions Indian monium nitrate is a popular fertilizer now this one here think about multiple charges for copper and so we get copper 1 sulfide for one can sulfur has negative 2 charge knows there's two coppers if there's two coppers that must mean that copper only has plus one charge here we have sodium carbonate and again we check our charges carbonate is -2 sodium what plus once we need two sodium's to balance out got to make sure they balance be sure to check out mr. Causey. Com for PowerPoint videos and much much more than what's a lot of other good things there describe to my YouTube channel there about 22 and videos there will check them out and y'all have a good day Naviance

Uploaded by Laura Houston.

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Bonding: How to Name Ionic and Covalent Molecular Compounds

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