1. Matter

2. Matter is anything that has mass and occupies space.
Definition
Matter is anything that has mass and occupies space.

3. Chemistry
The study of the composition of matter and the changes that matter undergoes.

4. Chemistry
Physical
Organic
Biochem
Inorganic

5. Does not depend on amount
Properties
Intensive:
Does not depend on amount
Extensive:
Depends on amount

6. Matter
Gas
Liquid
Solid

7. Solid Definite shape and volume
Particles tightly packed together in an orderly arrangement
Hard to compress

8. Liquid Lacks definite shape, fixed volume
Particles move more, flow freely
Mostly hard to compress

9. Gas Variable shape and volume Particles move quickly an freely
Easily compressed

10. Why?

11. Exceptions Vapor Plasma
Gas is commonly used for substances that are gases at room temperature
Vapor is a substance that is not a gas at room temperature: ex. water
Most common form of matter in the universe
Collection of free moving pieces of atoms and compounds
Ex: Fire, Neon Signs, Lightning, Stars

12. Precision V. Accuracy Accuracy: Precision:
How close to the correct answer you are
Precision:
How close your answers are to each other

13. Physical Change
A change in which the same substance is present before and after the change.
Ex:
Pounding
Cutting
Melting
Dissolving in water

14. Chemical Change
A change that rearranges the atoms and molecules to produce one or more new substances with new properties
Ex:
Burning
Fermentation

15. Physical v. Chemical Properties
Physical Properties
Chemical Properties
A property that can be observed without changing the substance
Extensive and Intensive Properties
A property characteristic of a substance when it is involved in a chemical change
Ex: Flammability, reactivity and stability
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16. Matter Is it uniform throughout? If No: Heterogeneous Mixture
A mixture that is not uniform in composition its components
Ex:
Most foods
Dirt
concrete
If Yes:
Homogeneous Matter

17. Homogeneous Matter Can it be separated by physical means? If Yes:
Homogeneous Mixture
A mixture that is completely uniform throughout. If you break up the substance each piece will be the same
Ex:
Paper
Wood
Plastic
If no:
Pure substance

18. Pure Substance Can it be decomposed by chemical means? If yes:
Compound
A substance of atoms of two or more elements
Ex:
Water
Salt
If no:
Element
One of the 118+ substances listed on the periodic table of the elements
Ex:
Sulfur
Magnesium
Carbon

19. Make A Decision What classification do the following fall under? Penny
Soda
Cough Syrup
Brass
24K Gold
Soot
Hydrogen Gas

20. Try It in Groups Generic Tylenol Stuffing in Stuffed Animals
Contents of an old Thermometer
Contents of a new Thermometer
Flower
Milk
Liquid Soap
Solid Soap
Newsprint
Money
Steel
Light

21. Systems Solution Solvent Solute
A homogenous mixture composed of a solute and a solvent
Solvent
The substance present in greater quantity
Solute
The substance present in lesser quantity
System
(solute – solvent)
Examples
Gas - Gas
O2 and CO2 in N2 (Air)
Liquid - Gas
H2O vapor in Air (Humidity)
Gas - Liquid
CO2 in Water (Soda)
Liquid - Liquid
CH3COOH in Water (Vinegar)
Solid - Liquid
NaCl in H2O (Brine)
Liquid - Solid
Cu in Ag (Sterling Silver)