CHM1025C
Module One: Sample Exam Homework Answers
Part D1: Chemical/Physical/Nuclear Properties (Section 3.6) 5 points
1. Define: Physical Property: A physical
property refers to those characteristics of a pure substance that we can change
without changing the composition of the substance.
2. Chemical Property: A chemical
property of a pure substance decribes the chemical reactions with other
substances.
3. Classify each of the following as a chemical or physical property:
a.
Color __ Physical Property __
b.
Odor ___Physical Property ___
c.
Reaction with water:
___Chemical
Property___
d.
Solubility in water: __ Physical
Property ___
e.
Melting point: ___ Physical Property ____
f.
Boiling point: ___ Physical Property ____
g.
Sublimation Point: __ Physical
Property ____
h.
Reaction with oxygen
__ Chemical Property ____
i.
Density: ____ Physical Property __
j.
Solid state:
____ Physical
Property __
k.
Reaction producing a Gas: __ Chemical
Property ____
l.
Conductor of electricity: ___ Physical
Property ____
m.
Water is insoluble in gasoline: _ Physical Property ___
n.
Good conductor of heat: ___ Physical
Property ___
o.
Two chemicals when mixed gives of heat: __ Chemical Property ___
p.
Appearance at Room Temperature: ___ Physical
Property __
q.
An element turns black when heated __ Chemical Property __
r.
Silver tarnishes in Air __ Chemical Property __
s.
An element is radioactive: __Nuclear Property__