1 / 31

Classification of Matter

Classification of Matter. MRS. D’Anton. VOCABULARY REVIEW GAME . RULES: FAMILY FEUD STYLE 1. Class is divided into 2 teams. 2. Each team sends 1 representative to the whiteboard. 3. A definition is projected and read aloud.

emerson-heath
Download Presentation

Classification of Matter

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Classification of Matter MRS. D’Anton

  2. VOCABULARY REVIEW GAME • RULES: FAMILY FEUD STYLE • 1. Class is divided into 2 teams. • 2. Each team sends 1 representative to the whiteboard. • 3. A definition is projected and read aloud. • 4. The first person to correctly spell the word on the white board, and pronounce correctly, gets the point. • 5. The second team may steal if there is an incorrect spelling or pronunciation. • 6. Class should check their homework and ensure the correct spelling of the word and definition is written in their notes during the game.

  3. Vocabulary word Clue • The smallest unit of a substance that keeps all of the physical and chemical properties of that substance; it ca consist of one atom or two or more atoms bonded together.

  4. Vocabulary word Clue • A sample of matter, either a single element or a single compound that has definite chemical and physical properties

  5. VOCABULARY WORD CLUE • The smallest unit of an element that maintains the properties of that element

  6. Vocabulary WORD CLUE • A combination of two or more substances that are not chemically combined

  7. VOCABULARY WORD CLUE • A substance that cannot be separated or broken down into simpler substances by chemical means; all atoms of this have the same atomic number

  8. VOCABULARY WORD CLUE • Describes something that has a uniform structure or composition throughout

  9. Vocabulary Word Clue • A substance made up of atoms or 2 or more different elements joined together by chemical bonds

  10. Vocabulary word clue • Composed of dissimilar components.

  11. Classifying Matter Everything is composed of matter. • Matter is anything that has mass and volume. • Matter exists in different forms, so classification is important when studying it. • In chemistry, classification can help you predict what characteristics a sample may have based on others like it. Example: By analyzing the properties of salt and water, we can predict how salt water may behave

  12. Physical & Chemical Properties • - Physical properties - characteristic that can be observed or measured without changing the identity of the substance. • - Chemical properties - relates to a substance’s ability to undergo changes that transform it into different substances Can you name some physical properties of this cupcake?

  13. Physical Property Examples • - Color • - State • - Texture • - Melting Point • - Boiling Point • - Size • - Shape • - Mass • -Volume • - Density • - Hardness • - Magnetic Properties

  14. Chemical Property Examples • - Flammability • - Reactivity • - Toxicity • Sample Statements: • - Burns in air • - Gold does not react with oxygen • - Toxic when mixed with x.

  15. Matter can be in any state. Solid, Liquid, Gas or Plasma* MATTER yes no Can it be physically separated? MIXTURE PURE SUBSTANCE yes no yes no Is the composition uniform? Can it be chemically decomposed? Homogeneous Mixture (solution) Heterogeneous Mixture Compound Element Colloids Suspensions Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  16. Pure Substances • Element • composed of identical atoms • Can exist as single atoms, molecules or as allotropes. • EX: copper wire, aluminum foil Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  17. Pure Substances • Compound • composed of 2 or more elements in a fixed ratio • properties differ from those of individual elements • EX: table salt (NaCl) Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  18. Mixtures Variable combination of two or more pure substances. Heterogeneous Homogeneous Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  19. Comparing/Contrasting Types of Matter Both elements and compounds have a definite makeup and definite properties. Compounds two or more kinds of atoms that are bonded. Mixtures two or more substances that are physically mixed and retain properties of original substances. Can be mixed in various ratios Elements only one kind of atom; atoms are bonded it the element is diatomic or polyatomic two or more kinds of atoms substance with definite makeup and properties Packard, Jacobs, Marshall, Chemistry Pearson AGS Globe, page (Figure 2.4.1)

  20. LAW OF DEFINITE PROPORTIONS • A given compound always contains the same, fixed ratio of elements • Compounds are always represented by an abbreviation or formula. Example: • The molecular formula of H2O shows that water molecules always have 2 hydrogen atoms bonded to 1 oxygen atom.

  21. Carbon, C Oxygen, O Carbon monoxide, CO Carbon, C Oxygen, O Oxygen, O Carbon dioxide, CO2 LAW OF MULTIPLE PROPORTIONS Elements combine in different ratios to form different compounds. Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  22. More On Mixtures • A sample of matter than contains two or more pure substances is a mixture. • Examples: • - Air • - Sweetened Ice Tea • - Salad • - Salt Water • - Milk • - Alloy

  23. Tyndall Effect TYPES OF Mixtures: SOLUTION SOLUTION • Homogeneous mixture • Very small particles- uniform distribution • No Tyndall effect • particles don’t settle • EX: rubbing alcohol Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  24. Mixtures COLLOID • Heterogeneous Mixtue • Medium-sized particles • Tyndall effect • Particles don’t settle (suspended) • EX: milk Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  25. Mixtures SUSPENSION • Heterogeneous Mixture • Large particles • Tyndall effect • Particles settle • EX: fresh-squeezed lemonade /orange juice Courtesy Christy Johannesson www.nisd.net/communicationsarts/pages/chem

  26. Identify the substance hydrogen atoms

  27. Identify the substance

  28. Identify the substance oxygen atoms hydrogen atoms

  29. Identify the substance

  30. Let’s Practice – Problem #7 • #7. Identify each of the following as an element, compound, homogenous mixture or heterogeneous mixture. • - CH4 • - S8 • -Distilled Water • - Salt Water • - CH2O • - Concrete

  31. Independent Practice • Please try the following: • #5. What is the smallest number of elements needed to make a compound? • Please try the following: • # 14. Four different containers are labeled C + O2, CO, CO2 and Co. Based on these labels, classify each as a: • - compound • -element • -heterogeneous mixture • -homogeneous mixture

More Related