Classification of Matter Choose words from the list to fill in the blanks in the paragraphs. chemical property mixture extensive property substance intensive property element property homogenous matter compound physical property heterogeneous matter Matter has uniform characteristics throughout is called (1) ____. Matter that has parts with different characteristics is called (2). A characteristic by which a variety of matter is recognized is called a(n) _______(3)__________. A characteristic that depends upon the amount of matter in the sample is called a(n) ____(4)________. A characteristic that does not depend upon the amount of matter is called a(n) _________(5)________. A characteristic that can be observed without producing new kinds of matter is called a(n) ________(6)______. A characteristic that depends on how a kind of matter changes suring interactions with other kinds of matter is called ________(7)________. 1. ________________ 2. ________________ 3. ________________ 4. ________________ 5. ________________ 6. ________________ 7. ________________ Matter can also be classified according to the basic types of matter it contains. A simple substance that cannot be broken down into other substances by chemical means is called _______(8)_______. A chemical combination of simple substances is called ________(9)______. A physical combination of different substances that retain their individual properties is called a(n) ________(10)_______. Either an element or a compound may be referred to as a(n) _______(11)______. 8. ________________ 9. ________________ 10. ________________ 11. ________________ MIXTURES Classify each of the following as an element, compound, heterogeneous mixture, or homogenous mixture. 12. Water _______________ 13. Carbon _______________ 14. Air 15. Table salt, NaCl _______________ 16. Sugar dissolved in water _______________ 17. Granite _______________ 18. Homogenized milk _______________ 19. Oxygen _______________ 20. Sand in water _______________ _______________ Chemical and Physical Properties Classify each of properties listed below as extensive physical, intensive physical, or chemical. 1. Color 2. _______________ __ 10. reactivity ____________________ Combustibility ___________________11. Unreactive ____________________ 3. Hardness __________________ 12. Odor ____________________ 4. Density __________________ 13. stability ____________________ 5. Mass __________________ 14. Malleability ____________________ 6. Melting point __________________ 15. Tendency to corrode _______________ 7. Ductility __________________ 16. reacts with water 8. Volume __________________ 17. Weight ____________________ 9. rusting __________________ 18. solubility ____________________ ________________ Some of the measured properties of a given substance are listed below. Write the general name describing each property. Select the names from the following properties: chemical, malleability, density, volume, hardness, melting point, ductility, mass, odor, weight, combustibility. 19. 20. 21. 22. 23. 24. 25. 15 dm3 ____________________ Can easily be hammered into sheets ____________________ 2.8 g/cm3 ____________________ Burns when heated in the presence of O2. ____________________ Stinks when heated ____________________ 500 oC ____________________ Can easily be drawn into a wire ____________________ Classify the following properties as extensive or intensive. 26. 29. mass _____________ 27. ductility _____________ 28. melting point _____________ color _____________ 30. length ____________ 31. conductivity _____________ Chemical and Physical Changes (2) 1. Classify each of the following as chemical or physical changes: a. growth of a plant _________________________________ b. fading of dye in cloth _________________________________ c. melting of ice _________________________________ d. digestion of food _________________________________ e. formation of _________________________________ f. heating of a wood _________________________________ g. making a rock candy by evaporating water from sugar solution h. production of light by an electric arc _________________________________ _________________________________ i. burning of a coal _________________________________ j. tearing of a piece of paper _________________________________ k. kicking of a football _________________________________ l. excavating of a soli _________________________________ m. exploding of a firecracker _________________________________ 2. Which of the following involve a change in state of a substance? a. grinding beef into hamburgers ____________________________ b. soldering wires on a computer circuit board by melting solder ________________________ c. pouring milk into a glass d. allowing soup to cool in a bowl _________________________________ _________________________________ Review - Matter Concepts In the space at left, write the term that correctly completes each statement. chemistry model experiment inertia element mixtures solution kinetic energy energy potential energy radiant energy extensive property intensive properties physical property matter observe hypothesize theory homogenous solute law of conservation of energy law of conservation of mass law of conservation of mass-energy chemical property heterogeneous mixture physical change ____________________1. The ____ states that matter is conserved in all changes except nuclear reactions. ____________________2. ______is dependent upon the motion of an object in relation to another object. ____________________ 3. A scientist’s mental image developed to help deal with abstract ideas and objects is a(n) __. ____________________4. The resistance of matter to any change in direction or rate of motion is called ______. ____________________5. That mass and energy are always conserved is the ______. ____________________6. Scientists consider all material to be ____. ____________________7. The statement that energy is always conserved, or the ____, means that the total amount of energy in the universe remains constant. ____________________8. After observing and hypothesizing, a scientist will ____ to test a hypothesis. ____________________9. All objects possess the capacity to do work, which is known as _____. ____________________10. The type of energy that is transferred through space and is not a property of an object is called ____. ____________________11. An explanation of some relationships between properties and structure is a(n) ____________. ____________________12. To make predictions based on observations is to _____. ____________________13. ________ depends upon an object’s position with respect to another object. ____________________14. _______ is discovering the relationships between the structure and properties of matter and using this knowledge to produce new materials. ____________________15. Before forming a hypothesis, a scientist will take time to ____, or take close look at the facts. ____________________16. The dissolved material in the solution is called _______. ____________________17. ______ are homogenous materials, such as pure salt or pure sugar, which always have the same composition. ____________________18. A reaction, or _____, produces new substances with new properties. ____________________19. _________ are substances composed of more than one kind of atom. ____________________20. _________ are homogenous matter containing more than one kind of material ____________________21. Mass, length, and volume are examples of ____. ____________________22. A(n) _____ is homogenous mixture with a varied composition. ____________________23. A substance composed of only one kind of atom is a(n) _____ ____________________24. A(n) _____ is determined by observing the behavior of a substance in the presence of other substances. ____________________25. ___________ materials are those consisting of only one phase. ____________________26. _____ depend upon the nature of the material rather than upon the amount of the matter present. 27. Classify the following materials as heterogeneous mixture, solutions, compounds, or elements. a. concrete ________________ f. gunpowder _________________ b. selenium ________________ 28. g. brass ______________________ c. baking powder ___________ h. hydrogen sulfide _____________ d. formaldehyde ____________ i. apple _______________________ e. aluminum _______________ j. soft drinks ___________________ Classify the following properties as chemical or physical. a. heat conductivity _______________ e. length ________________ b. combustible ___________________ f. brittleness _____________ c. acid resistant __________________ d. displaces hydrogen from water ________________ CHAPTER 1: ANSWER SHEET (PART II) Page 18: Classification of Matter 1. 2. 3. 4. homogenous matter heterogeneous mixture property extensive physical property 5. 6. 7. 8. intensive physical property physical property chemical property element 9. compound 10. mixture 11. substance Page 19: Mixtures 12. compound 13. element 14. homogenous mixture 15. compound 16. homogenous mixture 17. heterogeneous mixture 18. heterogeneous mixture 19. element 20. heterogeneous mixture Page 19: Chemical and Physical Properties 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. intensive physical property chemical property intensive physical intensive physical extensive physical intensive physical intensive physical extensive physical chemical property chemical chemical 12. 13. 14. 15. 16. 17. 18. intensive physical chemical intensive physical chemical chemical extensive physical intensive physical 22. 23. 24. 25. 26. 27. 28. 29. 30. 31. 19. volume 20. malleability 21. density combustibility odor melting point ductility extensive physical intensive physical intensive physical intensive physical extensive physical intensive physical Page 20: Chemical and Physical Changes(2) 1a. b. c. d. chemical chemical physical chemical e. f. g. h. physical chemical physical physical i. chemical j. physical k. physical l. physical m. chemical;\l 2a and d – yes; c and b – no Page 21/22: Review – Matter Concepts 1. Law of Conservation of 9. energy Matter 10. radiant 2. Kinetic Energy 11. theory 3. model 12. hypothesize 4. inertia 13. Potential energy 5. Law of Conserv. Of 14. chemistry Matter/Energy 15. observe 6. matter 16. solute 7. Law of Conserv. Of Energy 17. substance 8. experiment 18. chemical change 27. a. heterogeneous e. element b. element f. homogenous mixture c. homogenous mixture g. brass d. compound h. compound 28. a. physical b. chemical c. chemical d. chemical e. physical 19. 20. 21. 22. 23. 24. 25. 26. compounds mixtures extensive property solution element chemical property homogenous mixture intensive property i. heter. Mixture j. solution f. physical