CHAPTER5 MOLECULES AND COVALENT BONDS SEMESTER1

QUESTIONS
1. Why covalent compounds have  low electrical conductivity?
2.Name the allotropes of Carbon.

QUESTIONS
1. USE THE STRUCTURE TO EXPLAIN.
a. How graphite conducts electricity.
b. Why diamond  is considered as the hardest substance?

http://chemwiki.ucdavis.edu/Theoretical_Chemistry/Chemical_Bonding/General_Principles_of_Chemical_Bonding/Covalent_Bonds

http://www.bbc.co.uk/schools/gcsebitesize/science/add_edexcel/covalent_compounds/compoundsrev1.shtml

http://www.bbc.co.uk/schools/gcsebitesize/science/add_ocr_gateway/chemical_economics/nanochemistryrev1.shtml