CHEM 1211Sample Module Four Exam             Name ____________________________

 

Module Four Part I:  Language of Chemistry/Chemical Bonds(Chapter 3&9)

A. _____(04) Bond Recognition/Compound Classification-Sections 9.2, 9.3          

B. _____(15) Dot Structures of Molecules-Section 9.4                       

C. _____(04) Binary Molecular(Covalent) Compounds-Section 3.4 

D  _____(04) Binary Ionic Compounds-Section  3.3                         

E. _____(04) Polyatomic Ions-Section 3.3                                      

F. _____(04) Ternary Ionic Compounds-Section 3.3                        

G. _____(04) Binary Acids/ Ternary Oxyacids-Section 5.3               

H. _____(06) Inorganic Compounds                                                         

I.  _____ (05) Multiple Choice Chapter 3                    

_______(50) Total = ______%

 

Module Four: Part A: Bond Recognition                                                        4 points

Using a periodic chart, classify each element in the pair as a metal or nonmetal, then predict the bond type that should exist between the two elements.  (Assume all metal-nonmetal combinations have an electronegativity difference greater than 1.7.)

 

 

1.

 

K-Br

 

________________

 

4.

 

C-H

 

________________

 

2.

 

P-Cl

 

________________

 

5.

 

Cu-Zn

 

________________

 

3.

 

Cu-S

 

________________

 

6.

 

 B-F

 

________________

 

Module Four: Part B: Dot Structures of Modules                                          15 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.)  You may use your electron dot kits, but the kit may not include the polyatomic ion names/formula cutouts.

 

 

1.     NH3     CH4     C2H6      H2O

 

      2.       H2SO4     H3PO3     HClO3

 

 

 

 

 

 

 

 

 

 

 

3.    HNO2   H2CO3    HNO3                              

 

        4.         C2H2   O2    N2    C2H4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

5.       H2C2O4     HC2H3O2   HCHO2                           6.      HCN   CO2     SiO 2    

 

 

 

 

 

 

 

 

 

 

 

 

 


 

 

Module Four: Part C: Binary Molecular Compounds                                    4 points

Using a periodic chart write the names or formulas of the following compounds depending on whether the formula or the name is given.

 

 

1.

 

CO2

 

________________                         

 

2.

 

SO2

 

________________

 

3.

 

N2O3

 

________________

 

  4.     Phosphorus Pentachloride           ________________

 

  5.     Nitrogen Trihydride (Ammonia)    ________________

 

 

Module Four: Part D: Binary Ionic Compounds                                             4 points

 

Using a periodic chart, write the names or the balanced formulas for the following compounds depending on whether the formula or the name is given:

 

  1.     Lithium Sulfide           ________________

 

  2.     Iron II Chloride           ________________

 

  3.     Tin IV Fluoride           ________________

 

  4.     CaF2                          ________________

 

  5.     Co3P2                         ________________

 

 

 Module Four: Part E: Polyatomic Ions                                                  4 points

 

Using a periodic chart write the names or formulas of the polyatomic ions depending on whether the formula or the name is given.   (The formula must include the ion’s appropriate charge.)

 

  1.     SiO3 2-            ________________

 

  2.     SO4 2-             ________________

 

  3.     PO4 3-             ________________

 

  4.     ClO4 1-            ________________

 

  5.     NO2 1-             ________________

 

  6.     Hydroxide      ________________

 

  7.     Ammonium    ________________

 

  8.     Hypochlorite  ________________

 

  9.     Nitrate            ________________

 

 10.    Sulfite            ________________

 

 

 

BONUS: If you miss one of the above questions, one of the ions below will replace

                      any incorrect answer, provided the bonus answer is correct.

 

  Bonus #1      Acetate                   ________________

 

  Bonus #2      Cyanide                  ________________

 

  Bonus #3      Thiocyanate            ________________

 

 

 

Module Four: Part F: Ternary Ionic Compounds                                           4 points

 

 

Using a periodic chart write the names or formulas of the following compounds depending on whether the formula or name is given:

 

 

  1.     K2SiO3            ________________

 

  2.     Na3PO4           ________________

 

  3.     (NH4)2SO3       ________________

 

  4.     Mg(OH)3         ________________

 

  5.     Fe(IO3)3          ________________

 

  6.     Ammonium Hydroxide      ________________

 

  7.     Aluminum Hydroxide        ________________

 

  8.     Sodium Perchlorate          ________________

 

  9.     Calcium Nitrite                  ________________

 

 10.    Copper II Sulfate              ________________

 

 

 

 

Module Four: Part G: Binary/Ternary Acid                                                         4 points

 

Using a periodic chart write the names or balanced chemical formulas of the following compounds, depending on whether the formula or the name is given:

 

 

 

  1.     HCl                       ________________

     

  2.     HClO                     ________________

 

  3.     HClO2                    ________________

 

  4.    HClO3                     ________________

 

  5.    HClO4                     ________________

 

  6.     Nitric Acid              ________________

 

  7.     Carbonic Acid        ________________

 

  8.     Sulfuric Acid           ________________

 

  9.     Phosphoric Acid     ________________

 

 10.    Nitrous Acid            ________________

 

 

 

Module Four: Part H:   Inorganic Compounds                                                6 points

 

Using a periodic chart write the names or balanced chemical formulas of the following compounds, depending on whether the formula or the name is given:

 

 

 

  1.     CO2                                ________________

     

  2.     H2O2                               ________________

 

  3.     HBrO3                             ________________

 

  4.     Fe2O3                             ________________

 

  5.    NiSO4                              ________________

 

  6.     Calcium Phosphate       ________________

 

  7.     Sodium Hydroxide         ________________

 

  8.     Sulfurous Acid                ________________

 

  9.     Aluminum Carbonate     ________________

 

 10.    Ammonium Chloride      ________________

 

 

Module Four: Part I:   Multiple Choice                                                 5 points

 

1.   According to the general trends in the periodic table, which of the following                       elements is the most electronegative?

 

 

(a) O

 

(b) F

 

(c) P

 

(d) S

 

(e) Cl

 

 

2.   Draw the electron dot formula for ethylene, C2H4, and state the type of bonds in one        molecule.

 

 

(a) 6 single       bonds

 

(b) 5 single        bonds

 

(c) 4 single        bonds and 1 double bond

 

(d) 4 single       bonds and 2 double  bonds

 

(e) 4 single       bonds and 1 triple bond

 

 

3.   Magnesium metal and oxygen gas react to form the ionic compound magnesium             oxide.  Which of the following statements is true?

 

(a) Valence electrons are transferred from oxygen to magnesium atoms.

(b) The magnesium atom and the magnesium ion have the same number of valence             electrons.

(c) Magnesium and magnesium oxide have similar properties.

(d) The smallest representative particle is a molecule.

(e) none of the above

 

 

4.   Which noble gas is isoelectronic with a lithium ion?

 

 

(a) helium

 

(b) neon

 

(c) argon

 

(d) krypton

 

(e) xenon

 

 

5.   Which of the following ions has the electron configuration 1s2 2s2 2p6

 

 

(a) F-

 

(b) O2-

 

(c) N3-

 

(d) all of the above

 

(e) none of the above

 

 

 

6.   What type of chemical bond results from transferring valence electrons from a metal        to a nonmetal?

 

 

(a) covalent bond

 

(b) ionic bond

 

(c) metallic bond

 

(d) coordinate covalent bond

 

(e) none of the above

 

 

7.   The mercury (II) ion, Hg2+, is classified as which of the following?

 

 

(a) monoatomic cation

 

(b) monoatomic anion

 

(c) polyatomic cation

 

(d) polyatomic anion

 

(e) none of the above

 

 

8.   Aqueous H2S is classified as which of the following?

 

 

(a) binary ionic

 

(b) ternary ionic

 

(c) binary molecular

 

(d) binary acid

 

(e) ternary oxyacid

 

 

9.   What is the formula for the nitride ion?

 

 

(a) N3-

 

(b) N2-

 

(c) N1-

 

(d) NO21-

 

(e) NO31-

 

 

10.   What is the formula for the hydrogen carbonate ion?

 

 

(a) C2H3O21-

 

(b) C2H3O22-

 

(c) HCO31-

 

(d) HCO32-

 

(e) none of the above