Name: Period: Date: UNIT 1: Introduction to Matter Lesson 8: Baby, you look good

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1 Name: Period: Date: UNIT 1: Introduction to Matter Lesson 8: Baby, you look good Do Now: By the end of today, you will have an answer to: How do we describe and identify matter? Draw a particle diagram of a solid, liquid, and gas below. Include at least 9 particles. SOLID LIQUID GAS A 1- gram sample of which substance in a sealed 1- liter container will occupy the container completely and uniformly? (1) Ag(s) (2) Hg(l) (3) H 2O(l) (4) H 2O(g) Which set of properties does a substance such as CO 2(g) have? (1) definite shape and definite volume (2) definite shape but no definite volume (3) no definite shape but definite volume (4) no definite shape and no definite volume WRITE! Choose a celebrity from the PowerPoint in class and describe them. What are properties? A property is used to identify an object s characteristics and behavior.

2 In chemistry there are two kinds of properties: physical properties and chemical properties. PHYSICAL PROPERTY CHEMICAL PROPERTY Definition A characteristic that can be observed without changing the identity of the substance. The ability of a substance to combine with or change into one or more other substances. Examples Some properties of copper are given to you below. Please classify each property as physical or chemical. Properties of Copper Reddish brown, shiny Easily shaped into sheets (malleable) and drawn into wires (ductile) Forms new substances when combined with nitric acid and sulfuric acid Physical (P) or Chemical (C) Property? Density = 8.92 g/cm 3 Melting point = 1085 degrees Celsius Forms a deep blue solution when in contact with ammonia Good conductor of heat and electricity Forms green copper carbonate compound when in contact with moist air Boiling point = 2570 degrees Celsius

3 CHEMISTRY LAB #3 CHEMICAL AND PHYSICAL PROPERTIES WITH HOUSEHOLD CHEMICALS 50 MINUTES Purpose: The purpose of this lab is to examine chemical and physical properties of a variety of substances. Background: Scientists determine properties of matter using a variety of senses and tools. There are two types of properties of all matter, physical and chemical. Physical properties are those that can be observed without changing the identity of the substance. Chemical properties are the ability of a substance to combine or change into one or more different substances. In this lab, you will have a chance to explore both types of properties. WARNING: Please use caution when conducting the flammability test. Use the proper technique when checking for odors: Gently wave the palm of your hand above the surface of the sample to waft vapors toward your nose. Materials: Safety goggles Matches Napthalene (C 10H 8) Conductivity Tester Watch glass Isopropyl alcohol Tweezers Steel Wool (Fe) white vinegar Bunsen burner Sucrose (C 12H 22O 11) Distilled water Procedure: There is no real specific set of procedures for this investigation. Make sure you investigate each individual substance separately BEFORE performing the flammability test. To test the flammability of a solid: Use tweezers to hold a very small piece in the flame. To test the flammability of a liquid: Place a few drops on a watch glass and touch the liquid with a lighted match.

4 Record your observations in the table below. Substance Tested Physical State Odor/ Appearance Conducts electricity? Flammable? Steel Wool Sucrose Napthalene Isopropyl alcohol Vinegar Distilled Water

5 ANALYSIS: Directions: Answer the following questions based on your activity. Please answer in COMPLETE SENTENCES. 1. Which properties of the four you tested do you think are considering physical properties? Why? 2. Which properties of the four you tested do you think are considered chemical properties? Why? CHEMISTRY LAB #3 PHYSICAL AND CHEMICAL PROPERTIES 50 MINUTES RUBRIC Data and Observation ! Data is properly! Data is properly recorded in a recorded in a data coherent data table. table.! Observations are! Observations are specific vague and unclear.! Data is properly recorded in a coherent data table.! Observations are specific and includes drawings! No data present.! Observations are vague and unclear. Analysis Questions! Both answers correct.! All answers are thoroughly explained and supported by the experimental data.! 1 answer is fully correct. The other is partially correct.! Most answers are thoroughly explained and supported by the experimental data.! Only 1 answer is correct.! Most answers are thoroughly explained and supported by the experimental data.! Less than 1 answer is correct. OVERALL LAB: /8 POINTS (Scaled to 50) FINAL SCALED SCORE: Complete! Need to Revise

6 Name: Pd: Date: CW 1.8- Chemical and Physical Properties 10 points Sodium Hydroxide Chemical and Physical Property Activity Directions: You will perform a few tests with the sodium bicarbonate that you see in front of you. They will lead you to conclude some physical and chemical properties of sodium bicarbonate, more affectionately known as baking soda. SODIUM BICARBONATE SAFETY SHEET INFORMATION FOR SODIUM BICARBONATE PHYSICAL PROPERTIES 1. What phase of matter is sodium bicarbonate at room temperature? CHEMICAL PROPERTIES 1. Does sodium bicarbonate react with water? How do you know? 2. Look at the safety sheet above that comes with sodium bicarbonate and list three other physical properties of sodium bicarbonate. 2. Does sodium bicarbonate react with acetic acid? How do you know? 3. Look at the safety sheet above that comes with sodium bicarbonate and list two other chemical properties of sodium bicarbonate.

7 Question 1. Which statement describes a chemical property of the element magnesium? (1) Magnesium is malleable. (2) Magnesium conducts electricity. (3) Magnesium reacts with an acid. (4) Magnesium has a high boiling point. 2. Which statement describes a chemical property of oxygen? (1) Oxygen has a melting point of 55 K. (2) Oxygen can combine with a metal to produce a compound. (3) Oxygen gas is slightly soluble in water. (4) Oxygen gas can be compressed. 3. Which statement describes a chemical property of hydrogen gas? (1) Hydrogen gas burns in air. (2) Hydrogen gas is colorless. (3) Hydrogen gas has a density of g/cm 3 at STP. (4) Hydrogen gas has a boiling point of 20. K at standard pressure. 4. An example of a physical property is the element s ability to (1) react with an acid (2) react with oxygen (3) form a compound with chlorine (4) form an aqueous solution 5. The two forms of oxygen, O 2(g) and O 3(g), have (1) different molecular structures and identical properties (2) different molecular structures and different properties (3) identical molecular structures and identical properties (4) identical molecular structures and different properties Explanation of Answer

8 Name: Pd: Date: HW 1.8- Physical and Chemical Properties 20 points Directions: Answer all questions based on your knowledge of chemistry. Part A: Please circle the correct answer. 1. Physical or Chemical properties describe matter. 2. Physical or Chemical properties of a substance can be observed. 3. One can use their five senses to determine the Physical or Chemical properties of a substance. 4. Physical or Chemical properties usually describe how a substance reacts. 5. Physical or Chemical properties are not easy to observe. 6. Physical or Chemical properties can be used to identify substances. Part B: Classify the following as a physical property or chemical property. Description 1. Oxygen is odorless and colorless. 2. Copper turns green when exposed to the environment. 3. The piece of metal is magnetic. 4. The density of water is 1.0 gram per cubic centimeter. 5. Diamonds are a very hard substance. 6. The tree is 8 meters high. 7. Sodium reacts very easily with other elements. 8. Copper conducts electricity. 9. Water is a liquid. 10. The mass of NaCl sample is 30 grams. 11. Gold is nonflammable. 12. Alka- Seltzer tables react with water to produce gas. 13. The color of the ball is red. 14. Iron reacts with oxygen and forms rust. 15. The boiling point of water is 100 degrees C. 16. Baking soda reacts with vinegar. 17. The gas is flammable. 18. Oxygen is a gas. 19. Argon is not very reactive. 20. Nitrogen is a colorless gas. 21. The silver spoons tarnished and turned dark. 22. The piece of metal is magnetic. 23. Gold is nonflammable. Chemical or Physical?

9 Name: Pd: Date: Exit Ticket Quiz 1.8- Physical and Chemical Properties 4 points Directions: Classify each of the following properties as physical or chemical. 1. Hydrogen gas burns in air. 2. Hydrogen gas is colorless. 3. Hydrogen gas has a density of g/cm 3 at STP 4. Hydrogen gas has a boiling point of 20 K. Name: Pd: Date: Exit Ticket Quiz 1.8- Physical and Chemical Properties 4 points Directions: Classify each of the following properties as physical or chemical. 1. Hydrogen gas burns in air. 2. Hydrogen gas is colorless. 3. Hydrogen gas has a density of g/cm 3 at STP 4. Hydrogen gas has a boiling point of 20 K. Name: Pd: Date: Exit Ticket Quiz 1.8- Physical and Chemical Properties 4 points Directions: Classify each of the following properties as physical or chemical. 1. Hydrogen gas burns in air. 2. Hydrogen gas is colorless. 3. Hydrogen gas has a density of g/cm 3 at STP 4. Hydrogen gas has a boiling point of 20 K. Name: Pd: Date: Exit Ticket Quiz 1.8- Physical and Chemical Properties 4 points Directions: Classify each of the following properties as physical or chemical. 1. Hydrogen gas burns in air. 2. Hydrogen gas is colorless. 3. Hydrogen gas has a density of g/cm 3 at STP 4. Hydrogen gas has a boiling point of 20 K.