Properties of Matter

1. Properties of Matter • What are properties of matter? • Descriptions of matter, can be one of two categories • Extensive – Depends on the amount of matter, volume, mass, etc. • Intensive – Depends on the type of matter, hardness, melting point, etc

2. Whoa, Whoa, Whoa, nice shooting Tex. • Matter can be broken into different categories, element, compound, substance, and mixture • Element- atomically identical, all atoms are the same • Compound, chemical combination of two or more elements • Substance, can be either a element or compound, every sample has the same properties and same composition

3. My name is Inigo Montoya, you killed my father, prepare to die. • Mixtures are physical combinations of elements and or compounds, can be broken into homogeneous, heterogeneous, colloids, suspensions, and solutions. • Matter has physical properties and chemical properties • Physical is a property that can be observed or measured • Chemical is a property that describes how a substance change chemically, or becomes something completely different

4. Ahh, I love the smell of napalm in the morning. • A physical change is a change in state • A chemical change is a the substance becomes something chemically different. • What are some examples of each?

5. Ludicrous speed, now! • There are four states of matter: • Solid, definite shape, definite volume, incompressible, rigid,. Two main types, amorphous, and crystalline • Liquid, no def shape, def volume, conforms to the shape of the container • Viscosity is a liquids resistance to flow • Surface tension, uneven forces that act on the molecules of the liquid , forces of attraction

6. I’m a Mog, half man, half dog, I’m my own best friend • Gases, no def shape, no def volume, conforms to the shape of the container, do not confuse with vapor, which is matter that normally exists in the solid or liquid state, water and clouds for example. • Plasma, ionized gas or energized matter, makes up 99% of the univers.

7. Wow, that was all of Chp 2, My ppt = 6 slides, book ppt = 35, Lets move on to Chp 3 • Matter changes state due to the removal or addition of energy • Thermal energy is the total amount of potential and kinetic energy in a sample of matter • The average amount of kinetic energy is the temperature • Heat is the movement of thermal energy from a substance of higher energy to a substance of lower energy

8. She’s a ton of fun and your no fun at all, she completes you • 5 Types phase changes or changes in state • Melting, solid to liquid, energy is added • Freezing, liquid to solid, energy is releases • Vaporization, liquid to gas, energy is added, two types, boiling, below the surface, evaporation, above the surface

9. To infinity and beyond! • Condensation, gas to liquid, energy is released • Sublimation, solid to a gas. • Remember energy moves as phase changes occur.

10. We’re gonna need a bigger boat! • Review, compounds can be separated chemically, elements cannot. • Mixtures can be separated physically, through filtering, distillation, evaporation, etc. • A chemical change is one where a substance changes through a chemical reaction, with a reactant and product • Indications of a chemical reaction include transfer of energy, color change, production of gas or precipitate.

11. Do or do not, there is no try • Wow that was all of Chap 2