CHEM 1001/CHM 1020/CHM 1025C/CHM 1032C Pretest Name: _________

 

A. _____(05) Bond Recognition/Compound Classification-Sections 7.1, 12.1-12.3

B. _____(30) Dot Structures of Molecules-Section 12.4, 12.5

C. _____(05) Binary Molecular(Covalent) Compounds-Section 7.7

D _____(05) Binary Ionic Compounds-Section 7.2, 7.5

E. _____(05) Polyatomic Ions-Section section 7.3, 7.6

F. _____(05) Ternary Ionic Compounds-Section 7.3, 7.6

G. _____(05) Binary Acids/ Ternary Oxyacids-Section 7.8,7.9

H. _____(10) Inorganic Compounds 7.2-7.9

M._____ (10) Multiple Choice Chapter 12, 7

_______(80) Total = ______%

 

Module Four: Part B Dot Structures of Molecules 30 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 H2O2 H2O 2. H2SO4 H3PO4 HClO4 HClO3

 

 

 

 

 

 

 

3. HNO3 H2CO3 HNO2 4. CO2 HCN CO SO3

 

 

 

 

 

 

 

5. HC2H3O2 H2C2O4 HCHO2 CH2O 6. C2H4 C2H2 C3H8 C2H6

carbon to carbon by single covalent bond bond carbons to carbons

 

 

 

 

 

 

 

 

7. CH3CH2OH CH3COCH3 8. CH3OCH3 CHONH2

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

 

 

 

 

 

 

 

 

 

Bonus: CH2NH2COOH CH3COOCH2CH3

carbons to carbons by single covalent bonds -(NH2 hooks to first carbon in #1)(-CH2CH3 also hooks to oxygen in#2)

(work on back)