Worksheet Ch12 by Dytb0jZ8

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									                                   ~ Chapter 12 ~ Worksheet ~

1. How much heat is required to vaporize 43.9 g of acetone at its boiling point?




2. The human body obtains 1078 kJ from a candy bar. If this energy were used to vaporize water at 100 ℃,
how much water in grams could be vaporized? (Assume that the density of water is 1.0g/mL)




3. What kinds of molecular forces are present in each substance? [dispersion, dipole-dipole, hydrogen bonding]
       (a) HCl        ___________________________________________________________________
       (b) H2O        ___________________________________________________________________
       (c) Br2        ___________________________________________________________________
       (d) He         ___________________________________________________________________



5. Identify each solid as molecular, ionic, or atomic.
       (a) CaCl2(s)     _____________________            (c) Ni(s)   _____________________
       (b) CO2(s)       _____________________            (d) I2(s)   _____________________


6. Which solid has the highest melting point? Why?
       (a) C (s, diamond)      _______________________________________________________________
                               _______________________________________________________________


       (b) Kr(s)               _______________________________________________________________
                               _______________________________________________________________


       (c) NaCl(s)             _______________________________________________________________
                               _______________________________________________________________


       (d) H2O(s)              _______________________________________________________________
                               _______________________________________________________________


                                                                                      Chem 103 – Chapter 12 - Worksheet

								
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