CHEM 1001/CHM1020/CHM1025C/CHM1032C          Name:___________

 

Module One: Sample Pretest                

Part D: Chemical/Physical Change   5 points

State whether each of the following is a physical or a chemical change:

 

__________________1. Electricity decomposes water.

 

 

__________________ 2. Methanol dissolves in gasoline

 

 

__________________ 3. Dry ice pellets disappear

 

 

__________________ 4. Iron oxidizes to rust

 

 

__________________ 5. Bromine is a reddish-brown liquid at room temperature

 

 

Part E: Forms of Energy          5 points

 

List the six different forms of energy as an energy wheel:

 

 

 

 

 

 

 

 

 

 

Identify two forms of energy that are involved in each of the following energy conversions relating to a fossil fuel plant:

 

a. Burning coal converts water to steam:

 

 

 

 

b. A generator spins to make electricity: