Lab Report 1

Chapter 1
Chemistry and Measurements
Chemistry & Chemicals Study Plan Units of Measurement 4. Scientific Notation 5. Measured Numbers & Significant Figures 6. Significant Figures & Calculations 7. Prefixes & Equalities 8. Conversion Factors 9. Problem Solving 10. Density
1. 2. 3.

General, Organic, and Biological Chemistry
Fourth Edition Karen Timberlake

Chapter 1
Chemistry and Measurements
1.1 Chemistry and Chemicals
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Lectures

Chemistry
Chemistry is the study of matter and its  composition,  structure,  properties, and  reactions.

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Chemistry is Everywhere
Chemistry happens all around you, for example, when you  cook food,  add chlorine to your pool,  digest food, and  drop an antacid tablet in a glass of water.

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Field of Chemistry
The field of chemistry is divided into branches.  General Chemistry  Organic Chemistry  Biochemistry

Biochemists analyze samples in a laboratory.
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Alchemists: Early Chemists
Alchemists  learned to extract metal from ores,  designed some of the first laboratory equipment, and  developed early laboratory procedures.

Paracelsus believed that chemicals and minerals could be used as medicines.

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Chemicals
Chemicals are  substances that always have the same composition and properties,  in everything you see, and  also called substances and describe a specific type of material.

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Common Products Contain Chemicals
Substances you use everyday contain chemicals, including  shampoo,  soap, and  toothpaste.

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Chemicals Commonly Used in Toothpaste

© 2013 Pearson Education, Inc.

Chapter