IMF Forces

Three questions to ask to see if molecule is polar

1)Are any of the bonds polar

2)If yes Are all the bonds on one side of the molecule

3) if no are all atoms around central atom same

What is intermolecular Forces

Forces between molecules

What is a dipole-dipole Force

Forces between molecules that have dipole , between opposite partial charges of different molecules

What 3 elements for Hydrogen Bond

O N F

How are Van Der Waals Forces created

-Movement of Electrons in one molecule creates a temporary dipole

-This induces a temporary dipole nearby

Results in the attraction between partial charges of the nearby molecule

What molecules experience Van Der Waals

All molecules

What makes a Van Der Waal force stronger

More Electrons

What type of substances do polar and non polar molecules dissolve in

Polar Molecules dissolve in polar substances

Non-Polar Molecules dissolve in non-polar substances

Why is Ice less dense than Water

it holds a open lattice structure when occupy a large volume of space compared to water