Bonds+and+Water

Shally Margolis and Duy Nguyen

Intermolecular bonds - attraction between different molecules, usually weaker Intramolecular bonds - attraction that holds molecules together
 * 1) Hydrogen - the hydrogen must bond covalently to another atom, very strong
 * 2) Dispersion - weakest, temporary attraction result from the location of the electrons that make the molecule slightly positive and slightly negative.
 * 3) Dipole-Dipole - force created when a highly electronegative atom bond with a low electronegative atom which create a polar molecule
 * 1) Ionic - attraction between cation and anion
 * 2) Covalent - the sharing of electrons, stronger than ionic, can form double and triple bonds

Double Bonds - 2 pairs of shared electrons Triple Bonds - 3 pairs of shared electrons

Nomenclature
 * **Chain length** || C1 || C2 || C3 || C4 || C5 || C6 || C7 || C8 || C9 || C10 ||
 * **Word root** || Meth - || Eth - || Prop - || But - || Pent - || Hex - || Hept - || Oct - || Non - || Dec - ||


 * < **Hydrocarbon** ||< **Primary suffix** ||< **General name** ||
 * < Saturated C – C ||< - ane ||< Alkane ||
 * < Unsaturated C = C ||< - ene ||< Alkene ||
 * < Unsaturated C ≡ C ||< - yne ||< Alkyne ||

__**Water**

Properties__
 * Cohesion - the ability of water to hold together
 * Adhesion - water's molecules attract one another
 * Surface tension - water's strength to hold together at the surface
 * Very polar
 * Moderates earth's temperature
 * High specific heat (amount of heat required for 1 gram of substance to change by 1*C)
 * Most common solvent
 * Floating ice helps regulate aquatic systems
 * A few water molecules dissociate into hydronium ion ( H3O+) and hydroxide ion ( OH−)