Show Menu

Unit 4 Chemistry Test Cheat Sheet by

chemistry     polar     non-polar     solubility     ismoers

Polar vs Non-Polar

Polar
Non-Polar
made with two or more non-metals
no electrical poles
one end has a positive charge, the other has a negative.
electrons divided more equally
has electrical poles
charges cancel out
soluble in water
not soluble in water, but maybe like oil

Ionic vs Covalent

Ionic
Covalent
electrons not shared equally
electrons shared equally
high melting point
low melting point
between one metal and one non-metal
between two non-metals
 

Interm­ole­cular Force

London Dispersion
weakest interm­ole­cular force.t­em­porary attractive force that results when the electrons in two adjacent atoms occupy positions that make the atoms form temporary dipoles.
Dipole­-Dipole
occurs between two polar molecules. slightly stronger than london disper­sion. slightly positive attracts to slightly negative end. a good example is hydroc­hloride (HCl)
Ion-Dipole
attraction between an ion and a neutral molecule that has a dipole. most commonly found in soluti­ons.ion with non-polar molecu­le.w­eaker than covalent or ionic bonds. polar water and sodium ion.
 

Non-Polar? Or Polar?

Looking at Lewis Structure
if bonds are symetr­ical, it is non-polar. if it is asymme­trical it is polar.

Solubility Rules

Always Soluble
Exceptions
Insoluble
Nitrates
"­PMS­"
silver salts
Acetates (C2,H3­,O2-)
P>Pb2 (lead)
hydroxide salts (slightly)
Group 1 (Li+, Na+, etc)
M>M­ercury (Hg2)
hydroxide salts of transition metals
Sulfates
S>S­ilver (Ag)
sulfides of transition metals
Ammonium (NH4+)
 
carbonates
Group 17 (F-,Cl­-,Br-)
 
chromates
  
phosphates and fluorides

Download the Unit 4 Chemistry Test Cheat Sheet

1 Page
//media.cheatography.com/storage/thumb/sunyzz_unit-4-chemistry-test.750.jpg

PDF (recommended)

Alternative Downloads

Share This Cheat Sheet!

 

Comments

No comments yet. Add yours below!

Add a Comment

Your Comment

Please enter your name.

    Please enter your email address

      Please enter your Comment.

          Related Cheat Sheets

          More Cheat Sheets by sunyzz

          Electrochemistry Cheat Sheet