CHEM 1001/CHM 1020/ Chm1025C/CHM1032C         Name:__________________

Module Five Sample Pretest

Module Four-Part E   Basic Stoichiometry Definitions      5 points

Write the definitions to the following words:

 

 

mole

 

 

 

reactants

 

 

 

products

 

 

 

catalyst

 

 

 

precipitate

 

 

Fill in the following with the symbols used in chemical equations which has the stated translation or meaning(s):

 

_________1.  Produces, yields

 

_________ or _________ 2. Solid substance or precipitate forms

 

 

_________ or _________3.  Gaseous substance formed

 

 

_________4.  Water or aqueous solution

 

 

Show the symbol for heat:__________

 

 

How would you show a catalyst in a chemical reaction where A plus B forms products D and E, but is catalyzed by substance C:

 

 

 

Module Five-Part F Balancing Chemical Equations       20 points

Balance the following chemical equations (write the chemical formulas in #10 then balance):

 

 

1.          Fe     +      FeCl3       à       FeCl2

 

 

 

2.          Al        +       O2         à       Al2O3

 

 

 

3.          Na2CO3   +     C       +   N2    à     NaCN       +         CO

 

 

 

4.           FeS        +     O2    à       Fe2O3    +        SO2

 

 

 

5.          IBr      +       NH3        à        NI3          +       NH4Br

 

 

 

6.           Cl2       +      HOH       à       HCl         +     HClO

 

 

 

7.           AgNO3    à       AgNO2         +     O2

 

 

 

8.            HClO4      +     P4O10    à      H3PO4     +      Cl2O7

 

 

 

9.            HCl         +        Mg(OH)2   à     MgCl2      +      HOH

 

 

 

10.  Sodium hydroxide +   Hydrochloric acid  à   sodium chloride   +   water