Introduction to Chemistry The Six Main Branches of Chemistry

What is Chemistry??? Chemistry is the study of the composition of matter. (what stuff is made of) (How does it behave in different environments) Changes that occur to that matter.

Who Cares!? Knowing the properties of chemicals allows scientists to find suitable uses for them. For example: Artificial Sweeteners

1.) Organic Chemistry What one element off of the periodic table does a compound have to have to be “organic”? Carbon

If organic compounds contain Carbon, what are the other elements that are most likely bonded to them? Hydrogen Nitrogen Oxygen Phosphorus Sulfur Both 1 and 3 1, 3, and 5 All of the above 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

Organic Chemistry

2.) Inorganic Chemistry Inorganic Chemistry is the study of compounds that do not contain Carbon How do you determine if a compound contains Carbon? Look for “C” in the formula

Which of the following molecules is considered to be an inorganic compound? 1. Picture Choice 1 Picture Choice 2 Picture Choice 3 Picture Choice 4 2. 3. 4. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

How did you know???

Inorganic Chemistry

3.) Research Chemistry Basic or Pure Research – to gain new knowledge Discovery of Teflon leftover from a gas cylinder

3.) Research Chemistry Applied Research – to solve a specific problem Creation of new refrigerants to help ozone

3.) Research Chemistry Technological Development – used to improve the quality of life Invention of computers

4.) Physical Chemistry Physical Chemistry deals with properties that can be measured. Examples: Boiling Point Melting Point Density

Physical chemistry deals with all of the following except… Mass Density Freezing point Color Volume Temperature Boiling point 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

5.) Biochemistry Biochemistry studies Organic compounds and the processes they go through. On the molecular level, they research Structure and Function Example: Photosynthesis / Kreb’s Cycle

Biochemists would deal with all of the following except… Metabolism Rock chemical compositions Preservatives Glucose Insulin Pharmaceuticals 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30

6.) Analytical Chemistry Analytical Chemistry tells Chemical Components and Composition Qualitative = “What” we have Quantitative = “How much” we have