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Term 1 SCOPES 2014 - 2015

Term 1 SCOPES 2014 - 2015. 2 per day/ 3 x per week 1 question per slide for those teachers who use clickers. Week 2- Sept. 2 - Sept. 5, 2014. 1.) Grid the following measurement: 259.26 mL. 2.) If you are told to dilute some acid A pour the acid into water

sigourney-buckley
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Term 1 SCOPES 2014 - 2015

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  1. Term 1 SCOPES2014 - 2015 2 per day/ 3 x per week 1 question per slide for those teachers who use clickers.

  2. Week 2- Sept. 2 - Sept. 5, 2014 • 1.) Grid the following measurement: 259.26 mL

  3. 2.) If you are told to dilute some acid A pour the acid into water B pour the water into the acid C pour the water and acid into a beaker at the same time D it does not matter how you mix them as long as the dilution is correct

  4. 3.) Spilled acid should be neutralized F paper towels G water H alcohol J sodium bicarbonate

  5. 4.) A student places a beaker of liquid water on a hot plate. After a few minutes, bubbles form in water. The student tests the bubbles and determines that they contain gaseous water. Is the formation of bubbles by the heating of water a physical or chemical change? • A The change is chemical because a new substance was formed • B The change is chemical because the formation of a gas indicates a chemical change. • C The change is physical because no new substances were formed. • D The change is physical because the physical properties of the substance changed.

  6. 5.) Which of the following describes the separation of the components of a mixture? • F Water is broken down into hydrogen and oxygen. • G Salt is isolated from seawater through evaporation. • H Propane reacts with oxygen to form carbon dioxide and water. • J Magnesium carbonate decomposes to form magnesium oxide and carbon dioxide

  7. 6.) In a beaker, sugar is dissolved in water, and then the water is heated and evaporates. The sugar is recovered, and heat is again applied. Vapor is released, and the material in the beaker changes from white to black. What must you know to determine if a chemical change has occurred? • A the boiling point of the water • B the temperature at which sugar evaporates • C the boiling point of the sugar • D the identity of the black substance

  8. WEEK 3: Sept. 8- sept 12

  9. 1.) Vinegar is classified as a mixture. What does this tell you about vinegar? • A Vinegar is made of atoms of one type of element. • B Vinegar is made of atoms of different elements chemically bonded together. • C Vinegar has a composition that is the same wherever it is found. • D Vinegar contains two or more pure substances mixed together.

  10. 2.) Which grouping identifies chemical properties? • F Malleability, ductility, conductivity • G Luster, hardness, texture • H Combustibility, flammability, reactivity _ • J Density, melting point, boiling point

  11. 3.) In the following diagrams, the spheres represent particles. Different shadings represent different particles. Which of the following diagrams contains only one pure substance? • A C • B D

  12. 4.)A student made a homogeneous mixture of water and salt. Which of the following statements applies to this homogeneous mixture? • F This mixture is a solution. • G This mixture is a pure substance. • H The salt is not evenly distributed throughout this mixture. • J The salt chemically combines with the water in this mixture.

  13. 5.) You have measured the volume of a substance to be 3.25 mL. Can the student determine the identity of the substance from this measurement? • A No, because volume is an intensive property. • B No, because volume is an extensive property. • C Yes, because volume is an intensive property. • D Yes, because volume is an extensive property.

  14. 6.) Which of the following explains why saltwater is considered a mixture? • F It is composed of one element. • G It is composed of one compound. • H It is composed of two or more substances and has new chemical properties. • J It is composed of two or more substances that retain their own chemical properties.

  15. WEEK 4: Sept. 15- Sept 19

  16. 1.) Which of the following statements describes a difference between a mixture and a pure substance? • F A mixture tends to be homogenous, which a pure substance tends to be heterogeneous. • G A mixture has a specific melting point, while the melting point of a pure substance can vary. • H The density of a mixture can change with temperature, but the density of a pure substance cannot change. • J The composition of a mixture can vary from sample to sample, but the composition of a pure substance is always the same.

  17. 2.) Round the following measurement to 3 significant figures and bubble it below: -0.07857 m. ANSWER= -0.0786

  18. 3.) The measurement that has only non-significant zeros is – • A 506 mL C 0.0037 mL • B 60.0 mL D 400.0 mL

  19. 4.) A scientist makes the following observations about a sample of material: • It is a green crystalline solid. • It has a sour odor. • He measures its mass and volume and then calculates its density. Which of these observations, measurements, and calculations are intensive properties? • F State, odor, mass, and volume • G Color, state, mass, and density • H Color, state, odor, and density • J State, odor, mass, and volume

  20. 5.) Which of the following choices represents the calculation below rounded for correct significant figures? • A 131.03 cm3 • B 131.0 cm3 • C 130 cm3 • D 100 cm3 • SHOULD ONLY BE 1 SIG FIG

  21. 6.) Perform the following calculation. Bubble in your answer with appropriate significant figures. 272.03 ROUND TO THE SMALLEST NUMBER OF DECIMAL PLACES. ANSWER. 272

  22. WEEK 5: Sept. 22- Sept 26

  23. 1.) The label on a bottle of apple juice states that it contains 25% apple juice. How many milliliters of apple juice would there be in a 2 L bottle of the drink? • A 50 mL • B 200 mL • C 250 mL • D 500 mL

  24. 2.) Convert 1.841 x 104 cm to km • F 1.841 x 105 km • G 1.841 x 103 km • H 1.841 x 10-1 km • J 1.841 x 10-4km • 1.841 x 104cm X 1m x 1 km • 102 cm 103m

  25. 3.) A substance has a mass of 2.3400 x 102 g. Determine the number of significant figures in the mass and record and bubble your answer below. • A 2 C 4 • B 3 D 5

  26. 4.)In order to determine the identity of a substance, a student listed the following properties. Which of the following is a chemical property? • F Oxidizes in air • GConducts an electrical current • H Attraction to a magnet • J Dissolves in water

  27. 5.)Multiplying by which conversion factor would allow you to convert 35 liters to milliliters? • AC • BD

  28. 6.) Which of the following is a chemical change? • F Salt is dissolved in water. • G Water is boiled on a stove. • H Gasoline combusts in an engine. • J Copper metal is stretched into a long wire.

  29. WEEK 6: Sept 29- Oct 3

  30. 1.) Which of these can be used to convert 5.6 L to milliliters? • AC • BD

  31. 2.) Convert 97.23 kg to ng • F 9.723 x 109 ng • G 9.723 x 1010 ng • H 9.723 x 1012 ng • J 9.723 x 1013ng • 97.23 kg X 103 g x 109 ng • 1 kg 1g

  32. 3.) An old metal chain is found on a school playground. You want to know whether the chain is silver or aluminum. Which procedure would help you determine its density? • A Find the mass of the chain, then determine its density. • B Find the volume of the chain, then determine its density. • C Find the mass and the volume of the chain, then determine its density. • D Find the density of the silver and the density of the aluminum, then compare them to the mass of the chain.

  33. 4.) The table below shows some information for four different elements. • A cube of an unknown element has a shiny silvery color. The side of the cube measures 2.0 cm and the cube has a mass of 14.56 g. Based on the information provided, which element makes up the cube? • Fbarium • Gberyllium • Hchromium • J phosphorous

  34. 5.) A sealed flask contains 4.20 moles of aluminum. How many atoms of aluminum (Al) are in the flask? • A 6.98 x 10-24 atoms Al • B 2.58 x 1023 atoms Al • C 2.58 x 1024 atoms Al • D 6.98 x 10-23 atoms Al • 4.20 mol Al X 6.02 x 1023 atoms of Al • 1 mol

  35. 6.) How many grams of carbon are in 1.492 x 1025 atoms of carbon? Bubble in your answer below. • 1.492 x 1025 atoms C X 1 mole C________x 12.011 g C • 6.02 x 1023 atoms of Al 1 mol C

  36. WEEK 7- Oct. 6- Oct 10

  37. 1.)Study the density table given. If you pour all 4 liquids into a glass cylinder, the densest liquid will settle to the bottom, and the least dense will be at the top. Which of the following represents the correct order for these liquids from densest (at bottom) to least dense (at top)? • A 1 > 4 > 3 > 2 • B 2 > 3 > 4 > 1 • C 4 > 3 > 2 > 1 • D 1 > 2 > 3 > 4

  38. 2.) How many atoms are in 14.27 moles of magnesium? • F 4.219 x 1022 atoms • G 8.291 x 1024 atoms • H 1.502 x 1025 atoms • J 8.291 x 1025atoms • 14.27 mol Mg X 6.02 x 1023 atoms of Mg • 1 molMg

  39. 3.) Given what Rutherford learned about the structure of atoms from the gold-foil experiment, what would Rutherford likely have observed if he had used platinum foil instead of gold foil? (Platinum is an element with properties similar to those of gold, but its atoms have slightly less mass than gold.) • A All of the alpha particles would travel straight through the platinum. • B A few alpha particles would be slightly deflected by the platinum foil. • C A few alpha particles would be strongly deflected by the platinum foil. • D All of the alpha particles would be strongly deflected by the platinum foil.

  40. 4.) Based on his observations, the English chemist John Dalton formulated an atomic theory. • In 18976, J. J. Thomson showed that negative charges could be made to move from one end of a cathode ray tube to another, causing the tube to glow. Because of this, Thomson is credited with the discovery of the electron. Based on this information, what part of Dalton’s atomic theory conflicted with Thomson’s new data? • F 1 H 3 • G 2 J 4

  41. 5.)An atom contains 70 protons, 70 electrons, and 99 neutrons. What is the mass number? Record and bubble your answer below. • 70P + 99 N = 169 mass number

  42. 6.) Element X has two known naturally occurring isotopes. The mass and relative abundance of each isotope are shown below. • What is the average atomic mass of Element X to the nearing hundredth of an atomic mass unit? Record your answer and fill in the bubbles below. • (.5057 x 78.92) + • (.4943 x 80.92)= • 79.91 amu

  43. WEEK 8- Oct. 14- Oct. 17 • 1.) The quantity that has been measured to three significant figures is – • F 0.052 g =2 H 3.065 g = 4 • G 0.202 g J5000 g = 1

  44. 2.) Determine which of the following is an example of a chemical property? • A Helium does not react with any other metal. • B A sheet of copper can be pounded into a bowl. • C Diamond dust can be used to cut or grind most other materials. • D Barium melts at 725°C

  45. 3.) Calculate the atomic mass of the element X. Then use the periodic table to identify the element. Show all your work. • F Mg • G Al • H Si • J P

  46. 4.) How many neutrons are found in each isotope of Cu-63 and Cu-65? • A Cu- 63 has 34 neutrons and Cu-65 has 36 neutrons • B Cu-63 and Cu-65 both have 35 neutrons • C Cu- 63 has 63 neutrons and Cu-65 has 65 neutrons • D It is impossible to determine the number of neutrons in each isotope.

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