1. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 1 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chapter 1 Introduction to Chemistry 1.1 The Scope of Chemistry 1.2 Chemistry and You 1.3 Thinking Like a Scientist 1.4 Problem Solving in Chemistry

2. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 2 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. CHEMISTRY & YOU How is chemistry used to study worlds other than your own? Scientists who know chemistry have used the Hubble Space Telescope to discover water and compounds containing carbon on a planet located 63 light years from Earth.

3. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 3 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? What are three general reasons to study chemistry?

4. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 4 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Chemistry can be useful in explaining the natural world, preparing people for career opportunities, and producing informed citizens.

5. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 5 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Explaining the Natural World Chemistry can help you satisfy your natural desire to understand how things work.

6. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 6 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Explaining the Natural World why cut apples turn brown upon exposure to air. Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:

7. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 7 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Explaining the Natural World why cut apples turn brown upon exposure to air. why the texture of eggs changes from runny to firm as eggs are boiled. Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:

8. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 8 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Explaining the Natural World why cut apples turn brown upon exposure to air. why the texture of eggs changes from runny to firm as eggs are boiled. why water expands as it freezes. Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:

9. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 9 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Explaining the Natural World why cut apples turn brown upon exposure to air. why the texture of eggs changes from runny to firm as eggs are boiled. why water expands as it freezes. why sugar dissolves faster in hot water than in cold water. Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:

10. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 10 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Explaining the Natural World why cut apples turn brown upon exposure to air. why the texture of eggs changes from runny to firm as eggs are boiled. why water expands as it freezes. why sugar dissolves faster in hot water than in cold water. why yeast makes bread dough rise. Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:

11. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 11 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Preparing for a Career Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry.

12. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 12 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Preparing for a Career Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry. A reporter may be asked to interview a chemist to gather background for a story.

13. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 13 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Preparing for a Career Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry. Turf managers have the important task of keeping the grass on golf courses, lawns, and soccer fields healthy.

14. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 14 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Preparing for a Career Chemists contribute to society in many ways. You do not need to have the word chemist in your job title to benefit from understanding chemistry. A firefighter must know which chemicals to use to fight different types of fires.

15. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 15 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Being an Informed Citizen Space exploration research could not take place without federal funding. NASA research has led to the development of many items used on Earth. These include smoke detectors, scratch-resistant plastic lenses, heart monitors, and flat-screen televisions. What if all the money spent on space exploration was used to find a cure for cancer? Industry, private foundations, and the federal and state government all provide funds for scientific research.

16. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 16 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Being an Informed Citizen You may vote directly on some issues through ballot initiatives or indirectly through the officials you elect. You will need to make choices that will influence the direction of scientific research.

17. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 17 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Why Study Chemistry? Being an Informed Citizen When it comes to scientific research, there is no one correct answer. However, knowledge of chemistry and other sciences can help you evaluate the data presented, arrive at an informed opinion, and take appropriate action.

18. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 18 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Which of the following careers would require some understanding of chemistry? A.chef B.doctor C.farmer D.all of the above

19. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 19 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Which of the following careers would require some understanding of chemistry? A.chef B.doctor C.farmer D.all of the above

20. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 20 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chemistry, Technology, and Society What are some outcomes of modern research in chemistry?

21. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 21 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Many basic items you use every day, such as the sneakers you wear or the cereal you eat, are products of technology. Chemistry, Technology, and Society

22. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 22 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Many basic items you use every day, such as the sneakers you wear or the cereal you eat, are products of technology. Chemistry, Technology, and Society Technology is the means by which a society provides its members with those things needed and desired.

23. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 23 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Modern research in chemistry can lead to technologies that aim to benefit the environment, conserve and produce energy, improve human life, and expand our knowledge of the universe. Chemistry, Technology, and Society

24. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 24 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Materials and the Environment Chemists don’t just study matter—they also use what they know about the structure and properties of matter to make new materials with different or improved properties. Chemistry, Technology, and Society

25. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 25 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Materials and the Environment Chemists don’t just study matter—they also use what they know about the structure and properties of matter to make new materials with different or improved properties. For example, chemistry has played a large role in developing plastics for different uses. Chemistry, Technology, and Society

26. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 26 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Interpret Graphs Note: The amount of plastics packaging in U.S. waste includes plastics packaging that is to be recycled. Although plastics are a part of most of our daily lives, there is concern that their use is taking a toll on the environment and on natural resources. Year 15,000 12,500 10,000 7500 5000 2500 0 Waste produced (thousands of tons) 1960 1970 1980 1990 2000 2007

27. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 27 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Most plastics are made using petrochemicals, which are chemical products derived from petroleum. Chemistry, Technology, and Society The supply of petrochemicals is limited.

28. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 28 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Most plastics are made using petrochemicals, which are chemical products derived from petroleum. The supply of petrochemicals is limited. There has been demand for plastics that are better for the environment, such as the bioplastic shown at right, which is made from corn. Chemistry, Technology, and Society

29. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 29 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Energy Chemistry, Technology, and Society There are only two ways to meet the rising global demand for energy—conserve it or produce more of it. Chemistry plays an essential role in both of these options.

30. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 30 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. A knowledge of chemistry was necessary to develop the batteries that run gasoline- electric hybrid cars. Chemistry, Technology, and Society Energy There are only two ways to meet the rising global demand for energy—conserve it or produce more of it. Chemistry plays an essential role in both of these options.

31. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 31 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. A knowledge of chemistry was necessary to develop the batteries that run gasoline- electric hybrid cars. Chemists help design materials that collect energy from the sun that is then converted to electricity. Chemistry, Technology, and Society Energy There are only two ways to meet the rising global demand for energy—conserve it or produce more of it. Chemistry plays an essential role in both of these options.

32. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 32 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Medicine and Biotechnology Chemistry supplies the medicines, materials, and technology that doctors use to treat their patients. Chemistry, Technology, and Society

33. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 33 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Medicine and Biotechnology Chemistry supplies the medicines, materials, and technology that doctors use to treat their patients. Chemistry can also develop materials to repair or replace body parts. Diseased arteries can be replaced with plastic tubes. Artificial hips and knees made from metals and plastics can replace worn-out joints. Chemistry, Technology, and Society

34. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 34 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Biotechnology applies science to the production of biological products or processes. It uses techniques that can alter DNA in living organisms. When genes from humans are inserted into bacteria, the bacteria act as factories that produce chemicals of importance to humans, such as insulin. Chemistry, Technology, and Society Medicine and Biotechnology

35. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 35 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chemistry, Technology, and Society The Universe To study the universe, chemists gather data from afar and analyze matter that is brought back to Earth.

36. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 36 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. The Universe To study the universe, chemists gather data from afar and analyze matter that is brought back to Earth. This vehicle was designed to determine the chemical composition of rocks and soil on Mars. Data collected at the vehicle’s landing site indicated that the site was once drenched with water. Chemistry, Technology, and Society

37. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 37 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. CHEMISTRY & YOU How can chemistry be used to find evidence of life on other planets?

38. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 38 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. CHEMISTRY & YOU How can chemistry be used to find evidence of life on other planets? By analyzing light from stars, scientists can study their composition, and data gathered by probes can be used to analyze matter in space.

39. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 39 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Name one way in which chemistry has been used to help modern society conserve energy.

40. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 40 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Name one way in which chemistry has been used to help modern society conserve energy. Some possible answers include: batteries used in gasoline-electric hybrid vehicles materials used in solar-power generation

41. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 41 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Key Concepts Chemistry can be useful in explaining the natural world, preparing people for career opportunities, and producing informed citizens. Modern research in chemistry can lead to technologies that aim to benefit the environment, improve human life, and expand our knowledge of the universe.

42. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 42 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Glossary Terms technology: the means by which a society provides its members with those things needed and desired

43. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 43 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chemistry is relevant to many professions. A knowledge of chemistry can help you become an informed citizen. BIG IDEA

44. 1.2 Appearances can be deceiving- EQ: What is Chemistry? 44 Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. END OF 1.2