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
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1.2 Chemistry and You >
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.
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1.2 Chemistry and You > Why Study Chemistry?
Why Study Chemistry?
What are three general reasons to study chemistry?
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1.2 Chemistry and You > Why Study Chemistry?
Chemistry can be useful in explaining the natural world, preparing people for career opportunities, and producing informed citizens.
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1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World
Chemistry can help you satisfy your natural desire to understand how things work.
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1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World
Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:
• why cut apples turn brown upon exposure to air.
6
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.
1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World
Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:
• why cut apples turn brown upon exposure to air.
• why the texture of eggs changes from runny to firm as eggs are boiled.
7
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.
1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World
Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:
• 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.
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Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.
1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World
Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:
• 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. 9
Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.
1.2 Chemistry and You > Why Study Chemistry?
Explaining the Natural World
Chemistry can help you satisfy your natural desire to understand how things work. For example, chemistry can explain:
• 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.
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Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.
1.2 Chemistry and You > 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.
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Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved.
1.2 Chemistry and You > 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