How To Name Covalent Molecular Compounds - The Easy Way!

In this video we are going to talk about how to

name

hot

molecular

compounds

. Now the first thing you need to be able to do is be able to distinguish a

molecular

compound from an ionic compound because the rules for naming these

compounds

are different, for example, mgcl2 compared to SC2 mgcl2 is called magnesium chloride, while SC2 is simply called magnesium chloride. sulfur D. notice the difference SC2 is known as a molecular compound mgcl2 is known as an ionic compound so for ionic compounds you don't use prefixes like mono di Tri Tetra and things like that it's just not necessary but for molecular compounds If it is necessary to use them now, how do you distinguish an ionic compound from a molecular compound?

Normally, an ionic compound contains ions, it has charges, but 99% of the time it can. identify a metal inside, it is usually made up of a metal and a non-metallic metal, an exception might be like ammonium nitrate, if you see ammonium just know it is ionic, but 99% of the other times it will be made up of a metal and a Non-metallic magnesium is a metal. Chlorine is a nonmetal, making it an ionic compound. Typically, when you have two non-metals combined, you will have a molecular compound. Sulfur and chlorine are both non-metals and in this video we are going to focus on the

name

of the molecular compounds.

Before we begin, we should review the prefixes and the values ​​they represent. If you see the word monkey, monkey represents one, D represents two, Tri represents three, Tetra is associated with a number four. Penta represents five hexa is equivalent to six hepta is seven OCTA is eight Nana is nine and deca represents 10 so make sure you know these prefixes; You need to commit them to memory if you want to perform well on your next test, so let's work on some. Examples let's say if we want to name Co and CO2 both are molecular compounds now the first element if there is a coefficient I don't mean a coefficient but a subscript of one which means if you don't see a number there it is assumed to be one, if the first element has a subscript one, do not use the prefix model.

You can use a prefix pattern for the second element, but not for the first. This is called carbon monoxide because there is an oxygen that you don't want to say. Monocarbon monoxide doesn't work that way the second example is known as carbon dioxide because there are two oxygens, how can we name these two compounds? Feel free to pause the video and work on that example, so starting with 2 let's say nitrogen, which will say the name of the first element nitrogen and there are two oxygen, so nitrogen dioxide for the second example there are two nitrogens, so we need to specify it using one of the prefixes, so two represents D, so this will be called D nitrogen and five is associated with the word Penta so let's say pentoxide, notice that the second element ends with the suffix IDE ID now at this point I'm going to give you a bunch of examples so you can master the topic of naming hot molecular compounds, so go ahead and try these two no and n23, so n is not mon nitrogen but simply nitrogen monoxide, since we have an oxygen as the second element, so never use the prefix mono for the first element.

Now the second example is we have two nitrogen atoms so we will use the prefix d so it will be D nitrogen and since we have three three represents Tri so three oxygen atoms will be trioxide as you can see if you know the 10 prefixes we use. As before, it will be very

easy

to name these things, it is not too difficult. Here are some more examples that you can try with pcl3, pcl5, cbr4 and O2, so feel free to pause the video and try them, so let's start with pcl3. this will simply be phosphorus trichloride, since we have three chlorine atoms, so what about pcl5?

Now five are associated with the Penta prefix, so this will be phosphorus pentac chloride. You don't mean chlorine, I thought. Make sure you use the the ID suffix what about cbr4 4 is associated with the prefix Tetra, which is why it is called carbon Tetra bromide. Now what about our last example or F2? This is called oxygen D fluoride. Note that the most electronegative element has the ending in ID. The negativity of electricity increases towards Florine and so Florine is more electronegative than oxygen, that is why Florine has the IDE ending in pcl3. Chlorine is closer to Florine than phosphorus, so chlorine is more electronegative as it travels to the right and up through the prct table, the electronegativity of the elements increases, so the element i.e. , more Negative Electro will have the ID termination so here are some more examples you can try sif4 sf6 if7 and p410 so take another minute to work on those problems so SI means silicon and F is Florine so let's go Let's say fluoride and because there are four Florine atoms in S4 we're going to use the prefix Tetra, so it's going to be called Tetra fluoride, so that's the name of the first example.

Now what about the next one? An sf6 S means sulfur and we have six florin atoms six are associated with the word hexa, so it will be called sulfur hexafluoride. Now what if 7 I is the symbol for iodine and seven is associated with the word hepta, so it will eventually be called HEPA iodine fluoride? What about p4010? How can we name it? So we have four phosphorus atoms. So we're going to use the prefix Tetra, so it's going to be called Tetra phosphorus and 10 is associated with which prefix, if you remember, 10 is DECA, so we're. I'm going to say deoxide, it's going to sound weird if you have two vowels Deca oxide, so normally the a is omitted, so now you know how to name cogent molecular compounds, so look out for my next video on how to write the formulas of molecular compounds, so if you bookmark my chemistry videos playlist you should be able to find it or you can access all my playlists if you go to my channel so if you need help with physics, chemistry, algebra, trigonometric calculus you can visit my channel for watch those videos, so thanks for watching and have a nice day to