CHEM101 Study Guide - Chromate And Dichromate, Dinitrogen Pentoxide, Stoichiometry

• School: University of Alberta
• Department: Chemistry
• Course: CHEM101
• Professor: Yoram Apelblat

Document Summary

Compounds types of bonding and nomenclature. Metal + metal metallic (left for unit 3) E q1q2 r where q1 and q2 are the charges of the ions and r is the distance between the charges. Covalent bonding e are shared p+ p+, e e p+ e . Stability achieved at a distance called bond length. repulsions attractions. The strength of a bond depends on the magnitude of the mutual attraction between bonded nuclei and shared electrons. 9. 13 polar covalent bond (h2, f2, etc. ) (hf, etc. ) Bond energy (be) is the energy required to overcome the attraction and is defined as the standard enthalpy change for breaking the bond in 1 mol of gaseous molecules. Breaking a bond is always endothermic and therefore. A b (g) a (g) + b (g) A (g) + b (g) a b (g) Be is more or less independent of the molecule. Table 9. 2 and cds t13 average bond energies (or bond enthalpies)