1. Explain the difference between elements and compounds in terms
  of Dalton's Atomic Theory.


2. Suppose a sample of water contains 46,000,000,000,000
  molecules of water.
  How many oxygen atoms are in the sample ? __________________

  How many hydrogen atoms are in the sample? ___________________

3. Balance the following chemical equations.

   H2    +   O2       -->    H2O

   Mg    +   O2       -->    MgO

   Al    +   Cl2      -->    AlCl3

   KOH   +   H3PO4    -->    K3PO4   +    H2O

   C3H8  +   O2       -->    H2O     +    CO2

   P4    +   O2       -->    P4O10

   CH4   +   O2       -->    H2O     +    CO2

   C4H10 +   O2       -->    H2O     +    CO2

   S8    +   O2       -->    SO2


4. Predict the following products and write a balanced equation
  for the following reaction:

   C6H14   +   O2   -->


5. Give an example of a chemical reaction that produces a large           
  amount of thermal energy.                                              



6. Name a device that will convert chemical energy into
  electrical energy.


7. Name a device which will convert chemical energy into
  mechanical energy.


8. Name a device which will convert chemical energy into heat.


9. Name a device which will convert electrical energy into
  radiant energy.


 Answers - Please work problems BEFORE checking