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Predict the molecular shape and the electron pair geometry for the following molecules, state the number of lone pairs and bonding pairs a) BF3 b) SiBr4 c) PCl5 d) SeH2

Why would network covalent solids melt at a higher temperature than ionic solids?

Describe what happens if you neutralize a strong base with a weak acid.  Is the resulting solution neutral, acidic, or basic, and why?             

Explain what each digit implies in the following orbital designation   a) 3px1 b) 4d2  

Find the standard cell potential for the following reactions and predict whether or not they are spontaneous. a) F2 + 2Cl- –> 2F- + Cl2 b) Hg2+ + 2I- –> I2 + Hg c) Cu2+ + 2Br- –> Br2 + Cu d) Ni + Sn2+ –> Sn + Ni2+    

For the following equation… HCl(aq) + NaOH(aq)  –>  NaCl(aq)  +  H2O(l)    

What sort of data would you need in order to determine the reactant order for the reactants in a chemical reaction?

a) If you had to describe the difference between an organic and a non organic molecule to a friend that is not in this class, how would you do it? b) What different hydrocarbon families did we learn about in this class?  How can you distinguish them from each other? c) List four structural isomers of octane (names)

Compare the electrolysis of aqueous NaCl with the electrolysis of water.

List the three types of intermolecular forces and explain the differences between them.  For each type describe why they likely would or wouldn’t contribute to the formation of a molecular solid.