Chapter Objectives
At the end of this chapter, the student will be able to
1.  distinguish between physical and chemical properties.
2.  list examples of physical properties.
3.  describe the 3 states of matter (gas, liquid, solid) at macroscopic and microscopic levels.
4.  describe physical and chemical changes.
5.  identify the signs of a chemical change/reaction.
6.  categorize a sample of matter as a substance or a mixture.
7.  distinguish between homogeneous and heterogeneous mixtures.
8.  describe ways of separating mixtures.
9.  explain the differences between elements and compounds.
10. identify the chemical symobls of elements and name elements from their symbols.
11.  apply the law of conservation of mass to chemical reactions.

Key Terms
chemical change chemical property chemical reaction chemica symbol compound distillation element extensive property filtration gas heterogeneous mixture homogeneous mixture intensive property law of conservation of mass	liquid mass mixture phase physical change physical property precipitate product reactant substance solid solution vapor volume