Help with polar :( (1 Viewer)

[x_6madness9_x]

Hey guys.. can someone please clear up a few of my ques...
How can I tell if a molecule is Polar or non polar.. ( without looking at the electronegativity chart) ... and then how do i determine if a molecule has dispersion or dipole dipole forces present... thanks

 

[Zarathustra]

All molecules have dispersion forces. If it is an asymmetrical molecule it is polar. Its dipole if its polar.

 

[xiao1985]

usually, different element would have a different electronegativity... so when you see two different elements covalently bonded together, you can pretty much assume there is a dipole going on...