California Science Test Periodic Table of the Elements (Used for Grade 8 and High School) 12.01 1 1A 1 H Hydrogen 2 1.01 2A 3 4 Li Be 2 Lithium Beryllium 6.94 9.01 11 12 Na Mg Sodium Magnesium 3 4 22.99 24.31 3B 4B 19 20 21 22 K Ca Sc Ti 4 Potassium Calcium Scandium Titanium 39.10 40.08 44.96 47.87 37 38 39 40 Rb Y Sr 5 Zr Rubidium Strontium Yitrium Zirconium 85.47 87.62 88.91 91.22 55 56 57 72 Cs Ba La Hf 6 Cesium Barium Lanthanum Hafnium 132.91 137.33 138.91 178.49 87 88 89 104 Fr Ас Ra Rf 7 Francium Radium Actinium Fathertorium (223) (226) (227) 13 ЗА Key 5 11 Atomic number B. Na Element symbol Boron 10.81 Sodium Element name 22,99 13 Average atomic mass ΑΙ 7 6 5 8 9 12 10 11 Aluminum 5B 6B 26.98 8B 7B 1B 2B 24 23 25 26 27 28 29 31 30 V Cr Mn Fe Co Ni Cu Zn Ga Vanadium Chromium Manganese Iron Cobalt Nickel Copper Zinc Gallium 50.94 52.00 54.94 55.85 58.93 58.69 63.55 65.39 69.72 41 42 43 44 45 46 47 48 49 Nb Mo Tc Ru Pd Cd In Niobium Molybdenum Technetium Ruthenium Rhodium Palladium Silver Cadmium Indium 92.91 95.94 (98) 101.07 102.91 106.42 107.87 112.41 114.82 73 74 75 76 77 78 79 80 81 : Ta W Re Os Ir Pt Au Hg ΤΙ Tantalum Tungsten Rhenium Osmium Iridium Platinum Gold Thallium 180.95 183.84 186.21 190.23 192.22 195.08 196.97 200.59 204.38 105 106 107 108 109 110 111 112 113 Db Sg Bh Hs Mt Ds Rg Cn Nh Dubnium Seaborgium Bohrium Hassium Meitnerium Darmstadtium Roentgenlum Copemicium Nihonium (262) (266) (264) (269) (268) (281) (280) (285) (284) 18 BA 2 He Helium 17 15 14 16 4A 4.00 6A 5A 7A 10 6. 7 9 8 с N 0 Ne F Nitrogen Fluorine Oxygen Carbon Neon 14.01 16.00 19.00 20.18 15 14 16 18 17 Si P S CI Ar Silicon Phosphorus Sultur Chlorine Argon 28.09 30.97 32.07 35.45 39.95 32 33 34 35 36 Ge As Se Br Kr Germanium Arsenic Selenium Bromine Krypton 72.61 78.96 79.90 83.80 50 51 52 53 54 Sn Sb Te Xe Tin Antimony Tellurium lodine Xenon 118.71 121.76 127.60 126.90 191.29 82 83 84 85 a6 Pb Bi Po At Load Bismuth Polonium Astatine Radon 207.2 208.98 (209) (210) (222) 174 115 116 117 118 FI Mc Lv Ts Og Flerovium Moscovium Livermorum Tennessine Oganesson (289) (288) (293) (294) (294) 74.92 Rh Ag Rn Mercury (261) Tb If this number is in parentheses, then it refers to the atomic mass of the most stable isotope. 58 59 60 61 62 63 64 Ce Pr Nd Pm Sm Eu Gd Cerium Preseodymium Neodymium Promethium Samarium Europium Gadolinium 140.12 140.91 144.24 (145 150.36 151.96 157.25 90 91 92 93 94 95 96 Th Pa U Np Pu Am Cm Thorium Protactinium Uranium Neptunium Plutonium Americium Curium 232.04 231.04 238.03 (237) (244) (243) (247) 65 66 67 68 Dy Ho Er Terbium Dysprosium Holmium Erbium 158.93 162.50 164.93 167.26 97 98 99 100 Bk Cf Es Fm Berkelkum Califomium Einsteirdum Fermium (247) (251) (252) (257) 69 70 71 Tm Yb Lu Thulium Ytterbium Lutetium 168.93 173.04 174.97 101 102 103 Md No Lr Mendelevum Nobelium Lawrencium (258) (259) (262) Copyright © 2017 California Department of Education equation? 1. How many moles of hydrogen sulfide are required to produce 5.0 moles of sulfur according to the following balanced SO2 + 2H25 -> 35 + 2 H20 33 mol 17 1.5 0.60 2. Zinc reacts with hydrochloric acid according to the following balanced equation: Zn + 2 HCI ----> ZnCl2 + Hz If 0.60 mol of zinc reacts with 1.04 mol of hydrochloric acid, which if the following is the true statement? To receive credit for this problem, conversions are needed to support answer Email work shown within 10 minutes of test submission Hydrochloric acid is the excess reactant Zinc is the limiting reactant, Zinc is the excess reactant There is not enough information to determine the limiting reactant. 3. Given the following equation: 2 What mass of fluorine is needed to completely react with 3.6 grams of water? To receive credit for this problem, all work needs to be shown including conversions, and molar mass calculations. Email work shown within 10 minutes of test submission 4. In a chemical reaction, one of the chemical reactants is present in to make sure that the limiting reactant is completly consumed. quantity reagent excess none of the above 5. How many grams of carbon disulfide will be produced if 120 mg of carbon reacts with sulfur? To receive credit for this problem, al work needs to be shown including a balanced equation, including a completed atom inventory conversions, and molar mass calculations. Email work shown within 10 minutes of test submission O 0289 0.769 149 76 x 109 6. Given the following equation: How many moles of sodium oxide are required to produce 36 grams of sodium hydroxide? To receive credit for this problem, all work needs to be shown including conversions, and molar mass calculations. Email work shown within 10 minutes of test submission. water. 7. Refer to the following balanced equation in which ammonia reacts with nitrogen monoxide to produce nitrogen and 4 NH3 + 6 NO ----> 5 N2 + 6H20 How many moles of nitrogen monoxide are required to react with 2.45 mol of ammonia? To receive credit for this problem, conversion set-up needs to be shown. Email work shown within 10 minutes of test submission 8. How many calculation steps are required for mass-mass stoichiometry? 1 Depends on the given units 9. Use the balanced "ham sandwich" equation, to answer the following question: H + C + 2T + 3P + 2B ----> HCT2P3B2 Key: H = ham; C = Cheese; T = tomato; P = pickles; B = bread If you have 12 slices of ham, 4 slices of cheese, 10 tomato slices, 15 pickles, and 10 slices of bread, how many sandwiches can you make? 5 10. Which of the following is NOT true for stoichiometry calculations? The chemical equation must be balanced. We can determine the mass of the reactants necessary to produce a given amount of product. We can determine the mass of the product that would be produced from a given amount of reactant. The mole to mole ratio of reactants to products must be 1:1 11. When the leftover reactants have been used up, the limiting reactants remain in the reaction. True False 12. 2.00 moles of bromine reacts with 2.00 moles of sodium iodide to produce sodium bromide and iodine. How many grams of iodine will be produced? To receive credit for this problem, all work needs to be shown including a balanced equation, including a completed atom inventory conversions, and molar mass calculations. Email work shown within 10 minutes of test submission 13. Use the following information to answer the problem: Lead oxide reacts with hydrochloric acid to produce lead chloride and water. If 13 g of lead oxide is mixed with 6.4 g of hydrochloric acid, identify the limiting reactant. To receive credit for this problem, all work needs to be shown including a balanced equation, including a completed atom inventory, conversions, and molar mass calculations. Email work shown within 10 minutes of test submission 14. Molar mass is the conversion factor between grams and moles. o True False 15. Using the quantities of hydrogen and oxygen atoms shown in the figure, which statement is FALSE? I H I H ? H w H H ? H 1 Oo oo Hydrogen is the limiting reactant In a water molecule, the ratio of hydrogen to oxygen is 21. 2 molecules of water molecules can be made All of the above are correct.
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