CHE 170 E001
Chapter 1 Journal Assignment
Name:
1. Define physical change and chemical change. 4 points
State which type of change occurs in each of the following statements:
a. Passing an electric current through molten magnesium chloride and
gaseous chlorine.
b. The iron in discarded automobiles slowly forms reddish brown, crumbly
rust.
2. A one-step conversion is sufficient to convert a temperature in the Celsius
scale to the Kevin scale but not to the Fahrenheit scale. Explain.1.5 points
3. When you convert feet to inches, how do you decide which part of the
conversion should be in the numerator and which in the denominator. 1.5
points
