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Solution: Name each molecular compound. a. SO3...

Question

Name each molecular compound. 

a. SO3

Video Transcript

Hey guys, in this question we're naming molecular compounds, OK? So we have the first one which is going to be SO3, molecular compounds remember is when you have 2 non-metals together, so a non-metal plus non-metal, the way we name the molecular compounds is the first non-metal is named normally, OK? And you use the numerical prefixes except if it's mono you do not include the mono in there, alright? So you would include Di Tri Penta and so forth but you would not include mono just for the first non-metal. The second non-metal, alright? Once again you use your numerical prefixes but it keeps its base name and the ending changes to IDE, OK? So let's see what I'm talking about. So here we have 2 non-metals we have Sulphur and we have Oxygen, OK? There is 1 Sulphur atom so remember I said we do not include the word mono and mono is referring to the number 1 so in this case it would just be written as Sulphur so that's the first non-metal, the second non-metal keeps the base name so in this case it's going to be OX the ending changes to IDE so it's Oxide and then we have 3 3 oxygen atoms so you have to write the numerical prefix, the numerical prefix for 3 is going to be Tri. So this becomes Trioxide, OK? So for this molecular compound the full name is Sulphur Trioxide, OK? Once again, the first non-metal if it's 1 you do not include the prefix, OK? But you do include the prefix if it's any other number, for the second non-metal you include all prefixes including 1 and change the ending to IDE, OK? See you guys soon.

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