Chemistry Chapter 3 Matter and Change T.1 Properties of Matter T.2 Mixtures, Elements and Compounds T.3 Chemical Reactions Chemistry

Homework Define all key terms in sections 2-4 of Chapter 3. You may place the definitions on index cards, a foldable or on a sheet of paper. Due Friday

Plan Day Class work Homework Tuesday Notes on 3.1 Quiz next class on notes Wednesday Quiz PPT: T2 Define all key terms - Due Friday Thursday PPT T3 and review Friday Test

T.1 Properties of Matter What is matter? What are three states of matter? What is the difference between physical and chemical properties? What is the difference between physical and chemical changes?

Properties of Matter What is matter? What are examples of matter?

Extensive vs. Intensive Properties Extensive - property that depends on the amount of matter in a sample Examples: mass, volume Intensive - property that depends on the type of matter in a sample, not the amount of matter Examples: color, odor, boiling point

Properties of Matter Read pages 73 an 74 to distinguish between physical and chemical properties. State 2 examples of each property.

Physical or Chemical Property? Color Flammability Density Boiling point Reactivity Toxicity Flexibility

Copy this chart into your notes Solid Liquid Gas Definite Shape? Volume? Easily compressed? Molecule arrangement (drawing)

States of Matter

Physical vs Chemical Changes Using pages 76 & 77 in your text book, define physical change & chemical change

Physical or Chemical Change? Sugar dissolving in warm water A nail rusting Glass breaking Paper burning Iron and sulfur are heated to form a gray substance Water boils at 373K Vinegar reacts with baking soda

Reversible vs Irreversible Physical Changes. What do you think is the difference between the two types of physical changes? Are the following reversible or irreversible? - Ice melting - Cracking an egg

Review Make a Venn Diagram comparing liquids and solids Make a Venn Diagram comparing liquids and gases Make a Venn Diagram comparing solids and gases You have 4 samples, all of various sizes, of pure aluminum. Do all samples have the same extensive and intensive properties? Explain your answer. Look back at the Chemystery. Identify the physical and chemical changes. Are the physical changes reversible or irreversible?

T.1 Review Answer questions 1-3 on page 75

T.2 Elements, Mixtures, Compounds You will learn: Differences between all 3 terms Different classifications of mixtures How to separate mixtures

Element – The simplest form of matter - Symbol: one or two letters Organized in Periodic Table

Most symbols are based on Latin Names Symbols and Latin Names for Some Elements Name Symbol Latin name 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 Some Latin names look just like English name: oxygenium, nitrogenium

Symbols: Write the following elements in your notes with their symbols: Hydrogen Helium Carbon Nitrogen Oxygen Sodium Phosphorus Chlorine Neon Iron Nickel Copper Zinc Bromine Iodine Silver

Compounds – A substance that contains two or more elements chemically combined

Mixtures - Blends of two or more pure substances - Two types: 1. Heterogeneous - mixture with visibly different parts 2. Homogeneous - mixtures that do not contain visibly different parts. Also called solutions!

Checkpoint At the beach, you realize that both ocean water and sand are mixtures. Which is a homogeneous mixture (or solution)? Which is a heterogeneous mixture?

Separating Mixtures Distillation Filtration separates a solid from a liquid in a heterogeneous mixture liquid is boiled to produce a vapor that is then condensed into a liquid

Poem Worksheet

Review Page 83, #15-18

T.3 Chemical Reactions What is a chemical reaction? What are some clues that a chemical reaction has taken place? What are reactancts and products?

Chemical Reactions & Changes Chemical reactions produce chemical changes.

Chemical Reactions - One or more substances change into one or more new substances

Reactancts and Products

Recognizing Chemical Change transfer of energy change in color production of a gas formation of a precipitate http://www.youtube.com/watch?feature=player_embedded&v=uy6eKm8IRdI http://www.youtube.com/watch?v=txkRCIPSsjM&feature=player_embedded http://www.youtube.com/watch?feature=player_embedded&v=Mx5JJWI2aaw Fire (transfer of energy) Bleach clothes (color change)

Law of Conservation of Mass Matter is neither created nor destroyed in any process!

Applying the Law of Conservation of Mass Page 78, go over the practice problem as a class Try #5-8

Chapter Review On pages 94-97, answer the following questions: #33, 34, 36-38, 41-43, 45-50, 52, 59, 61, 62, 66-68 & 70