1. Chemistry 121 Tracy Furutani Spring 2015

2. What happened? A solid chunk of sodium metal was dropped into room temperature water. It immediately caused steam to rise from the water, caused the indicator in the water to turn pink and floated around on the water. It eventually burst into flame and made an audible sizzling sound. Finally, the metal disappeared, leaving a basic (pink) solution that was warmer than room temperature.

3. Chemistry, the science of matter and its changes Science: Repeatable, quantifiable, falsifiable

4. Chemistry, the science of matter and its changes Science: Repeatable, quantifiable, falsifiable Chemistry: The properties of materials and chemical reactions

5. Chemistry, the science of matter and its changes Science: Repeatable, quantifiable, falsifiable Chemistry: The properties of materials and chemical reactions Usual sequence: General chemistry  Organic chemistry  Physical chemistry or Analytical chemistry  Biochemistry or inorganic chemistry or organometallic chemistry

6. Chapter 1 key points Substances come in three forms Substances can be pure or mixtures Pure substances can be elements or compounds Measurements use the SI units; conversion factors allow unit conversions Scientific notation allows easy comparison of numbers