1. Chemistry Chapter 1
Matter and Change

2. I. What is Chem
*Chem:
*Chemical:
*Quantitative:
*Qualitative:

3. -Branches of Chem:
1. Organic
2. Inorganic
3. Physical
4. Biochemistry
5. Analytical Chem

4. -Scientific Method
1. State the Problem
2. Gather Information
3. Form a hypothesis
4. Test the hypothesis
5. Record and Analyze Results
6. Conclusion

5. -Sci. Method:
*Hypoth:
*Law:
*Theory:

6. II. Matter and Its Properties
-Matter: has mass & occ space
1. Occupy space
2. Experience inertia
*Inertia: resist change

7. *weight: (mass)(gravity)
*mass: amount of matter
*Law of Conservation of Mass

8. -NRG
*ability to do work
*ability to create a force over a distance some time in the future
~Chem deals mostly with
1. Thermal
2. Radiant
3. Electric

9. *kinetic nrg= (.5)(m)(v)2
nrg of motion
*potential nrg= (m)(g)(h)
nrg do to position

10. -Law of Conservation of NRG (1st) -States of Matter 1. Solid 2. Liquid
3. Gas
4. Plasma
**See Website Ex’s**

11. -Properties & Changes
*can be used to classify subst
1. Physical: observ or measure
without alter ident
of the material.
ex: color
2. Chemical: change that alters
ident
ex: burn wood, rust iron

12. *Chem Rxn: pg13
*Reactans yields Products
A + B ----> AB
*Exother: acid + HOH -->heat + ???
*Endother: ice + heat ---> HOH

13. Indicators of Chem Rxn’s
1. Produce heat & light
2. Produce gas
3. Produce precipitate
**K Demo**
*precip.: solid formed from
a solution

14. III. Classification of Matter
-Mixture
*Heterogeneous: pg 16
ex: veg. soup, clay + water
*Homogeneous / Solutions: pg16
ex: air, salt HOH

15. *Homogeneous / Solutions: pg16
ex: air, salt HOH
~components of any mixture can
be separated from each other
by physical methods

16. -Pure Substances
1. Same property
2. Same composition
3. Can not be separated without
changing the ident
ex: electrolysis

17. *element: ex: K, Pb
*chem. Cmpnd:ex: HOH, sugar
*Law of Definite Composition:
ex: CH4
C=75% H=25%

18. IV. Chemical Elements
*Groups: vert
*Periods: horz
-Symbols:

19. -Types of Elements (pg21)
1. Metals:
2. Nonmetals:
3. Metalloids:
4. Noble Gas: