Use the following data for three aqueous solutions of

Chem 115 Week Five Notes Covalent Bond: sharing of electrons, low electronegativity difference  Single bond: sharing of two electrons  Double bond: sharing of four electrons  Triple bond: sharing of six electrons ­ Cannot “give” electrons as seen in ionic salts, or bonds ­ Central atom: the atom which all other atoms in molecule bond to Nonpolar Bonds: 0.0­ 0.2 Polar Bonds: 0.3­1.4 Ionic Bonds: >1.5 Octet Rule: Number of valence electrons equals group # for main group elements ­ Octet= 8 bonding valence electrons ­ Driving force to “fill” octet ­ Derived from electron configuration e.g. 1s2, 2s2, 2p2 4 valence electrons for carbon 1s2, 2s2, 2p4  6 valence electrons for oxy