1. Unit 3 Outline Properties of Matter
Identification of Heat and Transfer
Classification of Matter
Calculating Solutions

2. Unit 2: Properties of Matter

3. Physical Property
Physical Property – a property that can be observed without changing the matter
Examples:
color - taste - hardness
odor - density
boiling point
melting point
malleability
ductility

4. malleable – able to be flattened into a thin sheet or foil
ductile – able to be pulled into a long thin wire
** all metals are both malleable and ductile

5. Two types of Physical Properties
1. Extensive
-Depends on how much there is
-for example: volume, mass, weight, etc…
2. Intensive
-Depends on the type of matter  NOT how much there is
-For example: density, melting/boiling points, color (sometimes), etc…

6. Chemical Property Chemical Property – Examples
the ability of a substance to combine with or change into another substance
describes how a substance reacts or fails to react with other substances to produce new substances
Examples
ability to rust or corrode
ability to react with an acid or base
ability to burn (combustion), flammability
oxidation, hydrolysis

7. States of Matter / Phases of Matter
Volume
Shape
Solid
definite
Liquid
takes shape of its container
Gas
takes volume of its container

8. Solid Gas State or Phase Particle level picture Particles description
Keep Volume?
Keep shape?
Solid
Liquid
Gas
Arranged in orderly pattern
Yes
Yes
Touching, but not tightly packed
Yes No
Far apart and rarely touching No No

9. Solid Gas State or Phase Particle Movement Amount PE Amount KE Example
Liquid
Gas
Low
Low
Ice
Vibrational only
Moderate
Moderate
Water
Vibrational & translational
Move freely
High
High
Vapor

10. Plasma – 4th state of matter
- an ionized gas

11. Physical and Chemical Changes
Does the chemical make-up of the substance actually change?

12. Changes that can occur to matter
Physical
a change that doesn’t alter the composition of a substance
Examples: Cut, crumple, tear, split, bend, crush, grind, and rip
Chemical
an alteration of the chemical composition of a substance that results in the formation of a new substance
ALWAYS forms a new substance that has different physical and chemical properties than the original substance.
Also known as a chemical reaction.

13. Evidence of a Chemical Change
change of color (unexpected)
change of odor
production of a gas (bubbles)
production of sound, heat, light
an explosion
formation of a precipitate
disappearance or appearance of a substance

15. Phase changes are Physical Changes

16. Potential Energy (PE)
energy due to position or condition
at the atomic level refers to the distance between the particles
closer= lower PE farther = higher PE
Potential Energy determines Phase of Matter
Kinetic Energy (KE)
energy due to motion
 Faster=higher KE Slower= lower KE
Kinetic Energy determines Temperature

17. Energy & Phase Changes
Adding or removing energy (heat) to a substance can cause it to phase change
During a phase change, temperature does not change

18. Heating Curve of Water

20. AB -heat Δ KE -move faster -temp.  -solid BC -heat Δ PE
Melting
Liquid AB
-heat Δ KE
-move faster
-temp. 
-solid BC
-heat Δ PE
-get farther apart
-temp. stay same
-melting CD
-liquid

21. DE EF -heat Δ PE -heat Δ KE -get farther apart -move faster
Boiling
Gas DE
-heat Δ PE
-get farther apart
-temp. stay same
-boiling EF
-heat Δ KE
-move faster
-temp. 
-gas

22. A B C D E F AB
-KE 
-slows down
-temp. 
-Gas BC
-PE 
-closer together
-temp. stays same
-Condensation CD
-Liquid

23. A B C D E F DE
-PE 
-closer together
-temp. stays same
-Freezing EF
-KE 
-slows down
-temp. 
-Solid

24. Boiling Point Boiling Freezing Melting Freezing Point & Melting Point
What is the boiling point?
What is the melting point?
What is the freezing point?

25. If melting & freezing points are at the same temperature. . .
how do you know which is which?
It depends on whether adding or removing energy!

26. What is this substance?
-Water
How do you know?
-Boiling & melting & freezing points of water

27. Pre Lab questions
Sketch a basic, hypothesized Heating Curve of Lauric Acid.
Sketch a basic, hypothesized Cooling Curve of Lauric Acid
Sketch a diagram of the set-up for this laboratory.
If you spill Lauric Acid on your skin what is the procedure for cleansing it.