Polar molecules
Non-polar bonds
An equal sharing of electrons in a covalent bond
Oil
An example of a non-polar molecule
Water
An example of a polar molecule
Polar bonds
An unequal sharing of electrons in a covalent bond
Polar molecules
Have a slightly positive end and slightly negative end due to polar bonds within the molecule
Electrostatic attraction or repulsion
Like charged objects attract, oppositely charged objects repel
Solubility
The ability to dissolve
Cohesion
The attraction of like molecules to each other, such as water
Surface tension
The cohesion between polar molecules at the surface of a liquid
Like dissolves like
The concept that polar substances dissolve polar substances, non-polar dissolve non-polar substances
Covalent bonds
When electrons are shared between atoms to form a bond.
