Chemistry Introduction to Active Learning

Throughout this chapter this icon is a reminder that you can go to http //now.brookscole.com/cracolice 3e to view tutorials, develop problem-solving skills, and test your conceptual understanding with unique interactive resources. 

Key terms and definitions are indicated with boldface print throughout the textbook. 

Welcome to your first college chemistry course Chemistry is the gateway to careers in scientific research and human and animal health. You may be wondering why you, as a biology, pre-medicine, pharmacy, nursing, or engineering major—or as someone with any major other than chemistry—are required to take this course. The answer is that all matter is made up of molecules, and chemistry is the science that studies how molecules behave. If you need to understand matter, you need to know chemistry. 

What lies before you is a fascinating new perspective on nature. You will learn to see the universe through the eyes of a chemist, as a place where you can think of all things large or small as being made up of extremely tiny molecules. Let s start by taking a brief tour of some of the amazing variety of molecules in our world. 

Now look at the DNA molecule (Fig. 1.1 [b]). DNA is nature s way of storing instructions for the molecular makeup of living beings. At first glance, it seems com- 

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CHAPTER 1 Introduction to Chemistry Introduction to Active Learning... 

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