1. 1.1 Chemistry and Chemicals
General, Organic, and Biological Chemistry
Fourth Edition
Karen Timberlake
Chapter 1
Chemistry and Measurements
1.1 Chemistry and Chemicals
Lectures
© 2013 Pearson Education, Inc.

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

3. 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.

4. Field of Chemistry The field of chemistry is divided into branches.
General Chemistry
Organic Chemistry
Biochemistry
Biochemists analyze
samples in a laboratory.

5. Alchemists: Early Chemists
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.

6. 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.

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

8. Chemicals Commonly Used in Toothpaste

9. Learning Check
List 5 chemicals you might find in your kitchen.

10. Solution 5 chemicals you might find in your kitchen include:
1. Calcium carbonate is found in kitchen countertops.
2. Sodium bicarbonate is found in baking soda.
3. Sugar
4. Salt
5. Acetic acid is found in vinegar.