Practice: Which of the following statements is true?
Chemistry is the study of matter and the changes it undergoes, with the atom being its basic functional unit.
Concept #1: Understanding Matter
Concept #2: Classifying Matter
Example #1: Consider the following substances:
Practice: Which of the following statements is true?
Practice: Choose the homogeneous mixture from the list below.
Practice: Classify each of the following as an element, compound or mixture.
a) Ammonia, NH3
b) Gold bar
c) Orange juice
d) Wine
e) Saline solution
