use electronegativity values, predict which bonds are more polar and tell the direction of polarity?
A. Cl - CH3 or Cl- Cl
B. H - CH3 or H - Cl
C. HO - CH3 or (CH3)3Si - CH3

Question

use electronegativity values, predict which bonds are more polar and tell the direction of polarity? 
A. Cl - CH3  or Cl- Cl
B. H - CH3 or H - Cl 
C. HO - CH3 or (CH3)3Si - CH3

anonymous · Answer

@theEric

anonymous · Answer

@thomaster

anonymous · Answer

@goformit100

theeric · Answer

I haven't seen this stuff in a while, sorry!

anonymous · Answer

thats okay thank you

theeric · Answer

Here's a table from Wikipedia http://en.wikipedia.org/wiki/Electronegativity And here it says that if the difference in electronegativity is between 0.5 and 1.7, then the molecule is often considered to be polar. http://www.files.chem.vt.edu/RVGS/ACT/notes/electronegativity.html So, in each part you are given two molecules. You have to look at each molecule, and find which molecule has the greatest difference in electronegativity.

theeric · Answer

I'm not sure about what the polarity will be.... The element with greater electronegativity will have a more negative polarity. But I'm not sure how you would say that.

Some memories are coming back to me. Do you have any questions, or do you think I said anything wrong?

anonymous · Answer

No thank you so much, your the best!

theeric · Answer

You're welcome!

You have to say the polarity, though, and I don't know how you'll do that! The next link shows $\delta +$ and $\delta-$ signs next to the elements... Maybe that is how it is done...

anonymous · Answer

yes that was part of the question/ direction ....your so smart =D

theeric · Answer

That is the lower case "delta" symbol.  $\delta +$ would mean it is more positive.

theeric · Answer

Haha, thanks... I just read the question... Also, I passed the course I learned that in... I don't know by how much, but I passed!

anonymous · Answer

thats good, I need to pass as well Idk why some of these classes are required bc I wont have to deal with any of this in my major lol

theeric · Answer

I know... I think they do that so that you have a more rounded education. And it's good to see other subjects if you're not sure what you want to do, or if you change your mind later.

Good luck with the course anyway! :)

anonymous · Answer

thank you so much =D

theeric · Answer

You're welcome! Let me know if you have more questions.

anonymous · Answer

i will..definitely! thank you once again =D