1. Introductory Chemistry: A Foundation, 6 th Ed. Introductory Chemistry, 6 th Ed. Basic Chemistry, 6 th Ed. by Steven S. Zumdahl & Donald J. DeCoste University of Illinois

2. Chapter 1 An Introduction

3. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 3 Why Is Chemistry Important? In our daily lives –New materials –New pharmaceuticals –New energy sources –Food supplies –Can you think of others?

4. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 4 Why Is Chemistry Important? In your education, chemistry helps you: –Learn to gather and organize information qualitative and quantitative –Learn to find patterns in information –Learn to analyze complex systems –Develop skills to predict future events based on patterns of behavior –Develop problem-solving skills systematic approach

5. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 5 What Is Chemistry? The science that deals with the materials of the universe and the changes these materials undergo The central science –Understanding most other fields of science requires an understanding of chemistry

6. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 6 Solving Problems Using a Scientific Approach Define the problem –Gather information –Facts –Observations Propose solutions –Organize information and look for patterns –Form hypotheses

7. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 7 Evaluate your proposed solutions –Test your patterns by using them to predict what will happen –Develop experiments Solving Problems Using a Scientific Approach (cont.)

8. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 8 The Scientific Method A process of studying natural phenomena that involves making observations, forming laws and theories, and testing theories by experimentation

9. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 9 The Scientific Method (cont.)

10. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 10 The Scientific Method (cont.) While experimenting we may observe the same behavior all the time, and therefore be able to predict this behavior will always occur in the future

11. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 11 The Difference Between a Theory and a Law Law: a generally observed behavior, without explanation as to why the behavior occurs Laws predict what will happen Theories explain why something happens (which will also allow you to predict what will happen!)

12. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 12 Best Approach to Learning Chemistry Learn the vocab of chemistry –Definitions of terms –How common vocab is applied to chemistry Memorize important information –e.g. Names, formulas, and charges of polyatomic ions Learn and practice processes –Systematic names and formulas –Dimensional analysis

13. Copyright © Houghton Mifflin Company. All rights reserved. 1 | 13 Best Approach to Learning Chemistry (cont.) Do end-of-chapter exercises to test your understanding and help you see the patterns Ask questions in class