1. Chapter 2 Matter and Change . 2.2 Mixtures 2.1 Properties of Matter
2.3 Elements and Compounds
2.4 Chemical Reactions
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2. Compare and contrast the different samples on the front desk.
Describing Matter
Do Now:
Compare and contrast the different samples on the front desk.
What is the same?
How are they different?
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3. Matter Classification
Substance
Mixture
Homogeneous
Mixture
Heterogeneous
Mixture
Element
Compound

4. What is matter made up of?
There is a key difference between elements
Elements
Compounds
Simplest form of matter that has a unique set of properties Examples: O - Oxygen H - Hydrogen Cu - Copper
Substance that contains 2 or more elements chemically combined in a fixed proportion. Examples: H2O - Water C12H22O11 - Sucrose CO2 – Carbon Dioxide

5. The Periodic Table

6. Symbols and Latin Names for Some Elements
Sodium Na
natrium
Potassium K
kalium
Antimony Sb
stibium
Copper Cu
cuprum
Gold Au
aurum
Silver Ag
argentum
Iron Fe
ferrum
Lead Pb
plumbum
Tin Sn
stannum

7. There is a key difference between elements Chemical Formulas
Distinguishing Elements and Compounds
There is a key difference between elements Chemical Formulas
Used by chemists to represent compounds
Subscripts tell you how many of each type of element are in the compound
Examples:
Table Salt: NaCl
Ammonia: NH3

8. There is a key difference between elements and compounds.
Distinguishing Elements and Compounds
There is a key difference between elements and compounds.
Compounds can be broken down into simpler substances by chemical means, but elements cannot.

9. Substance - Matter that has a uniform and definite composition
Describing Matter
Substance - Matter that has a uniform and definite composition
Mixture: physical blend of two or more substances that are not chemically combined
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10. Heterogeneous Mixture Homogeneous Mixture
Describing Matter
Heterogeneous Mixture
Homogeneous Mixture
Composition is NOT uniform throughout
Examples:
Salad
Chocolate Chip Cookie
Chicken Noodle Soup
Composition is uniform throughout
Also called a solution.
Examples:
Air Steel
Vinegar Salt Water
Milk
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11. Differences in physical properties can be used to separate mixtures.
Separating Mixtures
Separating Mixtures
Differences in physical properties can be used to separate mixtures.
Examples:
Filtration
Distillation
Magnetism
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12. Separates solids from a liquid in a heterogeneous mixture.
Separating Mixtures
Filtration
Separates solids from a liquid in a heterogeneous mixture.
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13. Distillation Separating Mixtures
Process which separates mixtures of liquids with different boiling points.
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14. END OF 2.2
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15. Read the Separating a Mixture of Elements and Compounds Lab.
Describing Matter
Do Now:
Read the Separating a Mixture of Elements and Compounds Lab.
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