SNC1P - Chemistry Test Review

Transcription

1 SNC1P - Chemistry Test Review Multiple Choice Identify the choice that best completes the statement or answers the question. 1. Which of the following is an example of a physical property? a. solubility b. combustibility c. ability to oxidize d. reactivity 2. Which of the following is an example of a chemical property? a. state of matter b. brittleness c. flammability d. odour 3. Which of the following is an example of a qualitative property? a. mass b. state of matter c. volume d. temperature 4. Which of the following is an example of a quantitative property? a. odour b. hardness c. length d. colour 5. What type of change(s) take(s) place when a candle is burned? a. chemical change only b. physical change only c. chemical and physical changes d. none of the above 6. Which of the following characteristics is a quantitative physical property of water? a. tasteless b. dissolves nearly everything c. exists as a solid, liquid, and gas d. freezes at 0 C 7. Which of the following is an example of a chemical change? a. crumpling a piece of paper b. melting ice c. baking a cake d. deflating a basketball 8. The figure below shows an antacid tablet that has been dropped into water. Which of the following observations about the figure is true and indicates that a chemical change may have occurred?

2 a. energy is produced b. change of colour c. change of odour d. bubbles are produced 9. Which of the following is an example of a physical change? a. salt dissolving in water b. fireworks exploding c. hair colouring d. iron rusting 10. Which of the following is a chemical property? a. lustre b. solubility in water c. brittleness d. reaction with an acid 11. You are performing an experiment to test a substance s ability to react with iodine. Which of the following are you testing for? a. a physical property b. a chemical property c. solubility d. combustibility 12. Freezing point, boiling point, and density of a substance are all examples of what type of property? a. chemical property b. characteristic physical property c. qualitative physical property d. characteristic chemical property 13. What is the name given to the temperature at which a substance changes from a liquid to a solid? a. melting point b. freezing point c. boiling point d. density 14. What is the name given to the temperature at which a substance changes from a solid to a liquid? a. melting point b. freezing point c. boiling point d. density 15. A sheet of paper is folded to make a paper airplane. What type of change(s) has (have) occurred?

3 a. chemical change only b. physical change only c. chemical and physical changes d. none of the above 16. Salt is dissolved in water. What type(s) of change(s) occurred? a. chemical change only b. physical change only c. chemical and physical changes d. none of the above 17. Which of the following is a positively charged particle in an atom? a. proton b. neutron c. electron d. nucleus 18. Which of the following is a particle in an atom that has no electrical charge? a. proton b. neutron c. electron d. orbit 19. Which of the following particles are found in the nucleus of an atom? a. protons and electrons b. protons and neutrons c. electrons and neutrons d. electrons and orbits 20. Which of the following is a negatively charged particle in an atom? a. proton b. neutron c. electron d. nucleus 21. Which particle in an atom orbits the nucleus? a. proton b. electron c. neutron d. all of the above 22. What type of charge does this fluorine atom contain?

4 a. positive b. negative c. neutral d. none of the above 23. How many electrons can the first orbit in an atom hold? a. 2 b. 4 c. 6 d How many electrons can the second orbit in an atom hold? a. 2 b. 4 c. 6 d How many electrons does this atom contain? a. 3 b. 4 c. 6 d What is the name given to the number of protons in an atom of an element? a. atomic number b. period c. group d. chemical family 27. Kara tests an object and determines that it is made of a substance that is dull, brittle, and a poor conductor of electricity. Which of the following groups would the substance most likely belong to? a. metals

5 b. non-metals c. metalloids d. alloys 28. Each element s box in the periodic table contains which of the following? a. chemical symbol b. element s name c. atomic number d. all of the above 29. Which group of elements do the atoms shown here belong to? a. alkali metals b. alkaline earth metals c. halogens d. noble gases 30. Which non-metal is the gas that all animals need to breathe? a. nitrogen b. oxygen c. argon d. helium 31. Metalloids exist in what physical state(s) at room temperature? a. gas b. liquid c. solid d. all of the above 32. Which of the following elements is in the same period as cobalt? a. potassium b. rhodium c. tungsten d. sodium 33. Which of the following elements is an example of a metal? a. calcium b. carbon c. sulfur d. iodine 34. What does the 27 in this box from the periodic table indicate about the element cobalt?

6 a. Cobalt was the 27th element to be discovered. b. An atom of cobalt contains 27 atomic particles. c. The atomic mass of cobalt is 27. d. An atom of cobalt contains 27 protons. 35. The figure below shows boxes from the periodic table for four elements. Which element contains the greatest number of protons in each of its atoms? a. lithium b. beryllium c. sodium d. magnesium 36. Which types of elements are used to make semiconductors? a. alkali metals b. non-metals c. metalloids d. alkaline earth metals 37. Which of the following elements is in the same period as neon on the periodic table of elements? a. oxygen b. chlorine c. argon d. helium 38. Which of the following elements is in the same chemical family as sulfur? a. oxygen b. chlorine c. phosphorus

7 d. helium 39. Which element is represented by the symbol Na? a. sodium b. potassium c. niobium d. barium 40. Which of the following elements is in the same chemical family as lithium? a. sodium b. beryllium c. magnesium d. titanium 41. Which of the following elements is in the same group as xenon? a. helium b. calcium c. potassium d. iodine 42. Which term describes two or more atoms that are chemically joined together? a. molecule b. subscript c. electrolysis d. catalyst 43. Which term describes the small number that follows the symbol for an element in a chemical formula and shows how many atoms of the element are present? a. molecule b. subscript c. electrolysis d. catalyst 44. Water is an example of which of the following? a. element b. compound c. mixture d. solution 45. What is the chemical formula for water? a. HO 2 b. H 2O c. H 3O d. H 2O Ammonia is represented by the chemical formula NH 3. How many elements does ammonia contain? a. 1 b. 2 c. 3 d Which of the following represents an element? a. Cl 2

8 b. MgCl 2 c. NO d. KCl 48. Which of the following represents a compound? a. CaCO 3 b. F 2 c. Fe d. Na 49. Which model could be used to represent a molecule of hydrogen peroxide (H 2O 2)? a. b. c. d. 50. You are building a model of a molecule of acetylene (C 2H 2). How many atoms do you need in total? a. 2 b. 4 c. 6 d You are building a model of a molecule of aluminum oxide (Al 2O 3). How many atoms do you need in total? a. 2 b. 3 c. 4 d Which of the following represents a diatomic molecule of an element? a. F 2 b. KBr c. HCl d. NO

9 53. What is the difference between a molecule of carbon monoxide (CO) and a molecule of carbon dioxide (CO 2)? a. Carbon monoxide contains only carbon, while carbon dioxide contains both carbon and oxygen. b. Carbon dioxide contains one more atom of carbon than carbon monoxide. c. Carbon dioxide contains one more atom of oxygen than carbon monoxide. d. Carbon monoxide contains three atoms, while carbon dioxide contains only two atoms. 54. Which of the following show(s) models of compounds? a. b. c. d. all of the above Matching 55. lithium 56. fluorine 57. beryllium 58. sodium 59. helium 60. potassium 61. xenon 62. chlorine 63. bromine Categorize each of the following elements into the correct chemical family. Answer choices may be used more than once. a. alkali metals b. alkaline earth metals c. halogens d. noble gases

10 64. magnesium 65. neon 66. calcium Match each description and element with the correct group: metals or non-metals. Answer choices may be used more than once. a. metals b. non-metals 67. good conductors 68. usually shiny 69. brittle 70. many are gases at room temperature 71. usually poor conductors 72. most are malleable 73. most have dull lustre 74. gold 75. calcium 76. oxygen 77. O Fe 2O CH F KCl 82. NaCl 83. CaO 84. NO 85. Na Categorize each example as an element or a compound. Answer choices may be used more than once. a. element b. compound