An apple has a mass of 297 grams. How many kilograms is this? (Note: You can use the information in the table below to make a conversion factor.) .0/msohtmlclip1/01/clip_image001.gif” alt=”Description: metric table”> o A. 0.297 kg o B. 29.7 kg o C. 2 970 kg o D. 297 000 kg A student is trying to solve the following problem by selecting the tile shown. .0/msohtmlclip1/01/clip_image002.jpg” alt=”Description: mass of container”> Which of the following statements is true? o A. The student chose the wrong tile to solve the problem. o B. The student chose the correct tile but needs to flip the tile to make the units cancel. o C. The student chose the correct tile but needs to add a second tile to solve the problem. o D. There is nothing wrong. The problem is ready to be solved. Based on the tiles shown how many meters per second is equivalent to 72 kilometers per hour? .0/msohtmlclip1/01/clip_image003.jpg” alt=”Description: conversion factor tiles”> o A. 0.27 m/s o B. 20. m/s o C. 36 m/s o D. 1 000 m/s A pumpkin has a mass of 314 ounces. Based on the tiles below what is the mass of the pumpkin in kilograms? .0/msohtmlclip1/01/clip_image004.jpg” alt=”Description: mass conversion tiles”> o A. 0.0111 kg o B. 3.14 kg o C. 8.90 kg o D. 43.2 kg The fastest animal in the world is the peregrine falcon. It is capable of diving after its prey at an amazing 83.00 meters per second. Use the tiles below to determine how fast this is in miles per hour. .0/msohtmlclip1/01/clip_image005.jpg” alt=”Description: speed conversion tiles”> o A. 128.0 miles/hour o B. 185.7 miles/hour o C. 298.8 miles/hour o D. 371.1 miles/hour How is 120 700 written in scientific notation? A. 120.7 • 103 B. 12.07 • 104 C. 1.207 • 105 D. 0.1207 • 106 What number is equivalent to 6.75 • 10-4? A. 0.000675 B. 0.0675 C. 6 750 D. 67 500 A balance accurate to one-hundredth of a gram measures the mass of a rock to be 56.10 grams. How many significant digits are in this value? A. 2 B. 3 C. 4 D. There is not enough information to answer this question. In the calculation shown below how many significant digits should the answer have? .0/msohtmlclip1/01/clip_image006.gif” alt=”Density calculation”> A. 1 B. 2 C. 3 D. 4 A star is measured to be 18.9 light years from Earth. What is the correct answer in the calculation shown below? (Consider both significant digits and scientific notation.) .0/msohtmlclip1/01/clip_image007.jpg” alt=”Description: light year calculation”> A. 1.8 • 1014 B. 1.79 • 1014 C. 17.9 • 1013 D. 17.88 • 1013 Which set of diagrams shows a balanced chemical equation? .0/msohtmlclip1/01/clip_image008.gif” alt=”Description: reactants and products”> A. Diagram A B. Diagram B C. Diagram C D. Diagram D Which set of coefficients would balance the following equation? Mg AlCl3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> Al MgCl2 A. 2Mg AlCl3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> Al 2MgCl2 B. 3Mg 2AlCl3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> 2Al 3MgCl2 C. Mg 2AlCl3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> 2Al MgCl2 D. 3Mg 4AlCl3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> 4Al 3MgCl2 Which set of coefficients would balance the following chemical equation? H3PO4 RbOH.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> H2O Rb3PO4 A. 2H3PO4 RbOH.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> 3H2O Rb3PO4 B. H3PO4 3RbOH.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> H2O Rb3PO4 C. H3PO4 RbOH.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> 2H2O Rb3PO4 D. H3PO4 3RbOH.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>3H2O Rb3PO4 Silver (Ag) has a molar mass of 107.8682 g nitrogen has a molar mass of 14.0067 g and oxygen has a molar mass of 15.9994 g. What is the molar mass of silver nitrate AgNO3? A. 169.8731 g B. 413.6229 g C. 137.8743 g D. 197.8865 g Why is the following equation invalid? Al 2O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”> Al2O3 A. An atom of aluminum (Al) is created in the reaction. B. An atom of oxygen (O) is destroyed in the reaction. C. The equation violates the Law of Conservation of Mass. D. All of the above. What coefficients would balance the following equation? __Al __O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>__Al2O3 A. 2Al 3O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>1Al2O3 B. 2Al 3O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>2Al2O3 C. 3Al 3O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>2Al2O3 D. 4Al 3O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>2Al2O3 What coefficients would balance the following equation? __C2H6 __O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>__CO2 __H2O A. 1C2H6 5O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>2CO2 3H2O B. 2C2H6 5O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>4CO2 6H2O C. 2C2H6 7O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>4CO2 6H2O D. 2C2H6 10O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>4CO2 6H2O Classify the chemical reaction shown here: Mg H2SO4.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>MgSO4 H2 A. Combination B. Single replacement C. Decomposition D. Double replacement Classify the chemical reaction shown here: CaCO3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>CaO CO2 A. Combination B. Single replacement C. Decomposition D. Double replacement Which of the following is an example of a double replacement reaction? A. 3Fe 2O2.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>Fe3O4 B. BaCl2 K2CO3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>BaCO3 2KCl C. NiCO3.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>NiO CO2 D. Cl2 2NaBr.0/msohtmlclip1/01/clip_image009.gif” alt=”Description: right arrow”>2NaCl Br2
