CHM 2210C  Chapter 1 Sample Exam     Name: _________

 

Module Four: Part B Dot Structures of Molecules          20 points

 

Using a periodic chart draw the electron dot structures of the following molecules:

 (Choose One for each question or the one circled on the paper)

 

1.  NH3   CH4    Br2     H2O                2.  H2SO4   H3PO4  HClO   HCl

 

 

 

 

 

 

 

3.     HNO3   H2CO3 HNO2                 4.      CO2    HCN    SO2   SO3  

 

 

 

 

 

 

 

5.   HC2H3O2     H2C2O4        HCHO2          6.      C2H4    C2H2   C3H8   C2H6

       carbon to carbon by single covalent bond                                          bond carbons to carbon

 

 

 

 

 

 

 

 

7.    CH2O   CH3COCH3   CH3CH2 OH                          8.           CH3OCH3                    CHONH2

                            carbon to carbons by single covalent bonds                   oxygen separates the carbons    O & N both bond to C

 

 

 

 

 

 

 

 

 

9.     CH2NH2COOH                                             10. CH3COOCH2CH3                  

carbon to carbons by single covalent bonds                                                       (CH2 also hooks to oxygen in#2)