1. Chapter 1 Introduction to Chemistry
Tammilee Kerr

2. What is Chemistry?
The study of the substances that makes up matter and the changes that they undergo to form new substances
Examples:

3. Fe2+ Fe3+ Branches of Chemistry Organic Chemistry Inorganic Chemistry
Study of chemicals that containing Carbon
Inorganic Chemistry
Study of chemicals that generally do not contain carbon
Fe2+
Fe3+

4. Branches of Chemistry Cont’d Physical Chemistry
Deals with the mechanism, rate and energy transfer that occurs when matter changes.
Analytic Chemistry
Focuses on the composition of matter

5. ? Fe2+ (Ferrous) Branches of Chemistry Cont’d
Biochemistry – Making the link
Study of reactions and processes in organism
Energy
How much energy is made ?
Fe2+
(Ferrous)
+ Binds O2

6. What is Matter? Examples: So what is Mass? E.g. All matter has a mass
Matter is anything that has mass and occupies space
Examples:
So what is Mass?
Mass is the measurement that indicates how much of a substance is in matter
Usually measured in Kilograms (kg) or grams (g)
E.g.
All matter has a mass

7. Is Mass & Weight the same?
What is Weight?
Weight Measures:
The amount of substance in matter (mass) and
The earths gravitational pull on that matter
Is Mass & Weight the same?
No!
E.g. A Human on Earth Vs. a Human on the Moon

8. Summary of Mass vs. Gravity
So is Mass & Weight the same? …… No!
Weight is dependent on gravity
Formula: Weight = Mass x gravity
Gravity on earth: 9.807 m/s²
Gravity on the moon: 1.622 m/s²
Summary of Mass vs. Gravity
The mass of an object is the same everywhere
Weight depends on the effect of gravity & varies according to location.
Mass can never be zero
Weight can be zero if no gravity acts upon an object

9. ****Weekend Reading *****
Read Chapter 2 for Monday (09/02/16)