CHM 130 Spring ’07                        QUIZ 3 KEY                 

Lisa Diebolt                                                                                      

 

1.        Classify the following as ionic or molecular compounds. (3 pts)

a.   CoCl2          ionic

b.      P2O5              molecular

c.      H2SO4           molecular

2.        Name the following ions (6 points).

a.      Ba2+            barium ion

b.      Sn4+            tin (IV) ion

c.      Cr3+                        chromium (III) ion

d.      Ag+             silver ion

e.      P3-                   phosphide ion

f.      I-                  iodide ion

 


3.        Write the formula for each of the following compounds. (6 pts)

a.      iron(II) nitrite                Fe(NO2)2

b.      sodium sulfide               Na2S

   c.  dichlorine heptaoxide           Cl2O7

4.        Name each of the following compounds. (10 pts)

a.      PbBr2          lead (II) bromide

b.      Ca(C2H3O2)2     calcium acetate

c.      KCN               potassium cyanide         

d.      Cu3(PO4)2       copper (II) phosphate

e.      S4F6               tetrasulfur hexafluoride