Name: Date: Class: CHAPTER 2. Investigation & Enrichment. INVESTIGATION Your material: Mass: Volume: Extensive properties of your material:

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1 Name: Date: Class: CHAPTER Properties of Matter Investigation & Enrichment INVESTIGATION Your material: Mass: Volume: Extensive properties of your material: Intensive properties of your material: Physical properties of your material: Chemical properties of your material: ENRICHMENT Properties of Matter Properties of Matter Intensive Physical Fill in the blanks. 1. The of an object is a measure of the amount of matter the object contains. The of an object is the amount of space occupied by the object. Mass or Volume? 3.6 g 2.8 ml 2. Identify each of the property as an extensive or intensive property. melting point odor mass color density physical state volume boiling point 3. Zinc is a metal. Zinc was discovered in 1746 by Andreas Marggraf. It is a solid, lustrous bluish-white metal. A 7.1 g sample of zinc would occupy a space of about 1 ml. Zinc has a density of 7.1 g/ml. Its melting point is C and its boiling point is about C. It is malleable-meaning it can be shaped into a sheet. List the properties of Zinc and state whether it is an intensive or extensive property. a. Intensive/Extensive b. Intensive/Extensive c. Intensive/Extensive d. Intensive/Extensive e. Intensive/Extensive f. Intensive/Extensive g. Intensive/Extensive h. Intensive/Extensive 4. True or false? All samples of a substance have different intensive properties. 5. True or false? All samples of a substance may not have the same extensive properties.

2 Name: Date: Class: 6. Physical properties of a substance can be or without changing the substance s composition. 7. Identify as physical or chemical property of matter. diamond is the hardest substance known magnesium burns brightly when ignited gasoline is combustible silver tarnishes (becomes black) over time Bromine freezes at -7 0 C iron and oxygen form rust gold is yellow in color water melts at 0 0 C rotten eggs have a bad odor TNT is explosive 8. True or false? Physical properties can help a chemist identify a substance.. Explain with an example: 9. Interpreting Data Bromine is a reddish-brown liquid that boils at 59 0 C and has a density of 3.1 g/cm 3 at room temperature. Bromine is highly reactive with many alkali metals. For example, it reacts with sodium to form a white solid. Bromine also reacts violently with phosphorus, arsenic and other elements. List 7 properties of bromine and circle each of the properties as a physical or chemical property. a. Physical/Chemical b. Physical/Chemical c. Physical/Chemical d. Physical/Chemical e. Physical/Chemical f. Physical/Chemical g. Physical/Chemical Exit Ticket

3 Name: Date: Class: CHAPTER States of Matter Enrichment 1. Classify each of the following as a solid, liquid, gas, or vapor. a. steam b. apple juice c. gasoline d. soccer ball e. air f. sugar crystals 2. Draw a particle diagram for the following substances. Draw at least 10 particles. gasoline oxygen gas baseball 3. The volume of which phase of matter can be reduced (compressed) the most? Why? 4. A carton of milk is poured into a bowl. Describe the changes that occur in the milk's shape and volume. 5. Circle the letter of the term that is NOT a physical state of matter. a. water b. gas c. liquid d. air e. solid f. wood 6. Match each behavior of particles in matter with the correct physical state. gas a. packed tightly together d. particles move very slowly liquid b. close, but free to flow e. particles move very fast solid c. spaced relatively far apart f. particles move slowly 7. The term gas is limited to those substances that exist in the gaseous state at. 8. Concept Mapping. Organize the following into a logical concept map. a. physical state b. physical property c. virtually incompressible d. solid e. liquid f. gas g. tightly packed particles h. compressible i. incompressible j. particles far apart k. loosely packed particles

4 CHAPTER Elements Compounds & Mixtures Enrichment Matter Substances Mixtures Element Compound Homogenous Heterogenous z Mercury (Hg) 1 element only Mercury sulfide (HgS) 2 different elements Mercury + Sulfur Olive oil (contains many different compounds) Salad (contains vegetables, nuts, oil, etc) 1. Use the words below to complete the following concept map. heterogenous salt-water mixture sand-water mixture mixtures solutions water 2. Classify the following as a substance or a mixture. Further classify the substance as an element or a compound. Further classify the mixture as a homogeneous or heterogeneous mixture. Substance/Mixture Homogenous/Heterogenous a. silver b. stainless steel c. noodle soup d. salad e. air

5 f. laundry detergent g. distilled water h. alka seltzer i. chicken broth j. sulfur 3. Which of the following pairs are the same and which pairs are different? a. a substance and a pure substance b. a heterogeneous mixture and a solution c. a substance and a mixture d. a homogeneous mixture and a solution e. copper and silver f. distilled water and salt water g. table sugar and table salt 4. Name all the elements contained in each of the following compounds. a. sodium chloride (NaCl) b. ammonia (NH 3 ) c. ethanol (C 2 H 5 OH) d. bromine gas (Br 2 ) 5. Classify the following pictures by placing the correct LETTERS in the blanks below. Use the key below. A = Element B = Compound C = Mixture of elements D = Mixture of compounds E = Mixture of element & compound F = Mixture of elements & compound Different elements: Why is carbon dioxide a compound and oxygen is an element. Explain.

6 Name: Date: 2.4 Physical & Chemical Changes CHAPTER 2 Enrichment PHYSICAL CHANGE CHEMICAL CHANGE melting rusting Chocolate 1. Class: Chocolate Iron Fe Iron oxide Fe2 O3 Classify the following as a physical change or a chemical change. a. cracking a glass window b. production of gas c. formation of blue color in the tube following the mixing of two colorless solutions d. the explosion resulting from a fire cracker e. ice melting and forming water f. the formation of brown freckles on an exposed iron pipe g. the twisting and bending of metal following an accident h. the shine on a silver spoon following mechanical polishing i. the souring of milk j. the shredding of paper k. the lighting of the charcoal in the barbecue grill l. the stench (foul odor) near a stagnant pool of water 2. List four possible clues to a chemical change. a. b. c. d. 3. Describe clues you might observe during the following events that could support the conclusion that a physical or a chemical change is occurring. a. An antacid tablet is dropped into water. b. A lit cigarette. c. Iron rusts. d. A firecracker explodes. e. Bubbles form when hydrogen peroxide is poured on open wound. f. A hamburger cooks. g. Magnesium wire burns with brilliant light. h. Sugar cube dissolves in water. i. A PVC pipe is bent