Archives
Chapter 1 1 Tentative Explanation For Set Observations That Can
Chapter 01 – Chemistry: The Study of Change Chapter 01 Chemistry: The Study of Change 1. A tentative explanation for a set of observations that can be tested by further experimentation is referred to as A. a hypothesis. B. a […]
Chapter 1 2 47 How Many Significant Figures Does The
Chapter 01 – Chemistry: The Study of Change 47. How many significant figures does the result of the following sum contain? 8.520 + 2.7 A. 1 B. 2 C. 3 D. 4 E. 5 Bloom’s Level: 4. Analyze Difficulty: Easy […]
Chapter 1 3 91 Give The Correct Number Significant Figures
Chapter 01 – Chemistry: The Study of Change 91. Give the correct number of significant figures and units to the problem below. 5.46 m3/ 2.01 m2 = A. 2.72 m5 B. 2.72 m3 C. 2.72 m2 D. 2.72 m E. […]
Chapter 1 4 130 The Following Which Not Physical Property
Chapter 01 – Chemistry: The Study of Change 130. Of the following which is NOT a physical property? A. Melting point B. Boiling point C. Density D. Color E. Ability to react with oxygen Bloom’s Level: 3. Apply Difficulty: Easy […]
Chapter 10 1 Give The Number Lone Pairs Around The
Chapter 10 – Chemical Bonding II: Molecular Geometry and Hybridization of Atomic Chapter 10 Chemical Bonding II: Molecular Geometry and Hybridization of Atomic 1. Give the number of lone pairs around the central atom and the molecular geometry of CBr4. […]
Chapter 10 2 51 Predict The Molecular Geometry And Polarity
Chapter 10 – Chemical Bonding II: Molecular Geometry and Hybridization of Atomic 51. Predict the molecular geometry and polarity of the SO2 molecule. A. linear, polar B. linear, nonpolar C. bent, polar D. bent, nonpolar E. None of the above […]
Chapter 10 3 84 Hybridized Terminal Oxygen Atom Bonded One
Chapter 10 – Chemical Bonding II: Molecular Geometry and Hybridization of Atomic 84. A sp hybridized terminal oxygen atom (bonded to one other atom only) with 1 lone pair of electrons has what type of bonding? A. 1 and […]
Chapter 10 4 117 what is the hybridization of each carbon atom?
Chapter 10 – Chemical Bonding II: Molecular Geometry and Hybridization of Atomic 117. The N – N – H bond angles in hydrazine N2H4 are 112. What is the hybridization of the nitrogen orbitals predicted by valence bond theory? A. […]
Chapter 11 1 Which One The Following Substances Expected Have
Chapter 11 – Intermolecular Forces and Liquids and Solids Chapter 11 Intermolecular Forces and Liquids and Solids 1. Which one of the following substances is expected to have the highest boiling point? A. Br2 B. Cl2 C. F2 D. I2 […]
Chapter 11 2 44 The Number Atoms Body centered Cubic Unit
Chapter 11 – Intermolecular Forces and Liquids and Solids 44. The number of atoms in a body-centered cubic unit cell is A. 1 B. 2 C. 3 D. 4 E. 8 Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: […]
Chapter 11 3 80 Which The Following Constants Isare Needed
Chapter 11 – Intermolecular Forces and Liquids and Solids 80. Which of the following constants is/are needed to calculate the amount of energy required to heat 12.0g of H2O(l) at 30.0C to H2O(l) at 85.0C? I. Hfus (H2O) II. Hvap […]
Chapter 11 4 123 Osmium Tetroxide Oso4 Soft Crystal That
Chapter 11 – Intermolecular Forces and Liquids and Solids 123. Osmium tetroxide, OsO4, is a soft crystal that melts at 40C. The liquid does not conduct electricity. What kind of crystal is this? A. Ionic Crystal B. Covalent Crystal C. […]
Chapter 12 1 Saturated Solution Contains More Solute Than Solvent
Chapter 12 – Physical Properties of Solutions Chapter 12 Physical Properties of Solutions 1. A saturated solution A. contains more solute than solvent. B. contains more solvent than solute. C. contains equal moles of solute and solvent. D. contains the […]
Chapter 12 2 40 The Solubility Nitrogen Gas 25c And
Chapter 12 – Physical Properties of Solutions 40. The solubility of nitrogen gas at 25C and a nitrogen pressure of 522 mmHg is 4.7 10–4 mol/L. What is the value of the Henry’s Law constant in mol/L·atm? A. 9.0 […]
Chapter 12 3 80 The Vapor Pressure Water 450 C
Chapter 12 – Physical Properties of Solutions 80. The vapor pressure of water at 45.0 C is 71.93 mmHg. Calculate the vapor pressure of a solution of 1.50m K2CO3 at this temperature (assume 100% dissociation). A. 1.89 mmHg B. 5.39 […]
Chapter 13 1 Chlorine Dioxide Reacts Basic Water Form Chlorite
Chapter 13 – Chemical Kinetics Chapter 13 Chemical Kinetics 1. Chlorine dioxide reacts in basic water to form chlorite and chlorate according to the following chemical equation: 2ClO2(aq) + 2OH–(aq) → ClO2–(aq) + ClO3–(aq) + H2O(l) Under a certain set […]
Chapter 13 2 37 Citys Water Supply Contaminated With Toxin
Chapter 13 – Chemical Kinetics 37. A city’s water supply is contaminated with a toxin at a concentration of 0.63 mg/L. For the water to be safe for drinking, the concentration of this toxin must be below 1.5 x 10-3 […]
Chapter 13 3 74 The Activation Energy For The Reaction
Chapter 13 – Chemical Kinetics 74. The activation energy for the reaction O + O3 → 2O2 is 25 kJ/mol, and the enthalpy change is H = –388 kJ/mol. What is the activation energy for the decomposition of O2 by […]
Chapter 13 4 98 When Acetaldehyde Pressure 364 Mmhg Introduced
Chapter 13 – Chemical Kinetics 98. When acetaldehyde at a pressure of 364 mmHg is introduced into an evacuated 500. mL flask at 518C, the half-life for the second-order decomposition process, CH3CHO → CH4 + CO, is 410. s. What […]
Chapter 14 1 Which The Correct Equilibrium Constant Expression For
Chapter 14 – Chemical Equilibrium Chapter 14 Chemical Equilibrium C. D. E. Bloom’s Level: 3. Apply Difficulty: Easy Gradable: automatic Section: 14.01 Subtopic: Equilibrium Constant and Reaction Quotient Topic: Chemical Equilibrium 14-1 Copyright © 2016 McGraw-Hill Education. All rights reserved. […]
Chapter 14 2 41 Consider The Following Equilibria 2so3g 2so2g
Chapter 14 – Chemical Equilibrium 41. Consider the following equilibria: 2SO3(g) 2SO2(g) + O2(g) Kc = 2.3 10–7 2NO3(g) 2NO2(g) + O2(g) Kc = 1.4 10–3 Calculate the equilibrium constant for the reaction SO2(g) + NO3(g) SO3(g) + […]
Chapter 14 3 88 500 Mol Ammonia Are Introduced Into
Chapter 14 – Chemical Equilibrium 79. Select True or False: Consider the reaction N2(g) + 3H2(g) 2NH3(g). When hydrogen gas is added to this system at equilibrium, the reaction will shift towards reactants. FALSE Bloom’s Level: 4. Analyze Difficulty: Medium […]
Chapter 15 1 The Hydronium Ion And The Hydroxide Ion
Chapter 15 – Acids and Bases Chapter 15 Acids and Bases 1. The hydronium ion and the hydroxide ion, in that order, are: A. H3O+, OH+ B. OH–, H3O– C. OH–, H+ D. H3O+, OH– E. H3O–, OH– Bloom’s Level: […]
Chapter 15 2 44 Calculate The Hydrogen Ion Concentration Solution
Chapter 15 – Acids and Bases 44. Calculate the hydrogen ion concentration in a solution of fruit juice having a pH of 4.25. A. 1.0 10–14 M B. 5.6 10–5 M C. 4.0 10–25 M D. 2.5 […]
Chapter 15 3 84 Predict The Direction Which The Equilibrium
Chapter 15 – Acids and Bases 84. Predict the direction in which the equilibrium will lie for the reaction H2SO3(aq) + HCO3– (aq) HSO3–(aq) + H2CO3(aq). Ka1(H2SO3) = 1 10–2; Ka1(H2CO3) = 4.2 10–7 A. to the right […]
Chapter 15 4 130 The Equilibrium Constant For The Reaction
Chapter 15 – Acids and Bases 130. The equilibrium constant for the reaction C6H5COOH(aq) + CH3COO–(aq) C6H5COO–(aq) + CH3COOH(aq) is 3.6 at 25C. If Ka for CH3COOH is 1.8 10–5, what is the acid dissociation constant for C6H5COOH? A. […]
Chapter 16 1 Which One The Following Solutions Will Acetic
Chapter 16 – Acid-Base Equilibria and Solubility Equilibria Chapter 16 Acid-Base Equilibria and Solubility Equilibria 1. In which one of the following solutions will acetic acid have the greatest percent ionization? A. 0.1 M CH3COOH B. 0.1 M CH3COOH dissolved […]
Chapter 16 2 39 Calculate The The Equivalence Point For
Chapter 16 – Acid-Base Equilibria and Solubility Equilibria 39. Calculate the pH at the equivalence point for the titration of 0.20 M HCl with 0.20 M NH3 (Kb = 1.8 10–5). A. 2.87 B. 4.98 C. 5.12 D. 7.00 […]
Chapter 16 3 79 Calculate The Molar Solubility Baco3 010
Chapter 16 – Acid-Base Equilibria and Solubility Equilibria 79. Calculate the molar solubility of BaCO3 in a 0.10 M solution of Na2CO3(aq). (Ksp (BaCO3) = 8.1 x 10-9) A. 8.1 x 10-9 M B. 9.0 x 10-5 M C. 8.1 […]
Chapter 16 4 114 340 0150 Solution Nh3aq Titrated With
Chapter 16 – Acid-Base Equilibria and Solubility Equilibria 114. 340. mL of a 0.150 M solution of NH3(aq) is titrated with 0.100 M HCl. Calculate the pH of the solution after 350. mL of HCl has been added. (Ka(NH4+) = […]
Chapter 17 1 Which These Species Would You Expect Have
Chapter 17 – Entropy, Free Energy, and Equilibrium Chapter 17 Entropy, Free Energy, and Equilibrium 1. Which of these species would you expect to have the lowest standard entropy (S)? A. CH4(g) B. HF(g) C. NH3(g) D. H2O(g) Bloom’s Level: […]
Chapter 17 2 32 Calculate G For The Reaction 3no2g
Chapter 17 – Entropy, Free Energy, and Equilibrium 32. Calculate G for the reaction 3NO2(g) + H2O(l) → 2HNO3(l) + NO(g). A. 8.7 kJ/mol B. 192 kJ/mol C. –414 kJ/mol D. –192 kJ/mol E. –155 kJ/mol Bloom’s Level: 4. Analyze […]
Chapter 17 3 68 Using The Thermodynamic Data Provided Below
Chapter 17 – Entropy, Free Energy, and Equilibrium 68. Using the thermodynamic data provided below, calculate the standard change in entropy when one mole of sodium nitrate is dissolved in water. Will the solubility of sodium nitrate increase or decrease […]
Chapter 17 4 Entropy Free Energy And Equilibrium 100
Chapter 17 – Entropy, Free Energy, and Equilibrium 100. Consider the reaction CO(g) + 2H2(g) CH3OH(l) at 25C. Gf (CO) = –137.3 kJ/mol Gf (CH3OH) = –166.3 kJ/mol Hf (CO) = –110.5 kJ/mol Hf (CH3OH) = –238.7 kJ/mol S(CO) = […]
Chapter 18 1 Balanced Redox Equation Must Have Which The
Chapter 18 – Electrochemistry Chapter 18 Electrochemistry 1. A balanced redox equation must have which of the following: I. The same number of each type of atom on both sides of the equation II. The total number electrons lost in […]
Chapter 18 2 35 the weakest reducing agent listed above is a
Chapter 18 – Electrochemistry 35. The overall reaction 2Co3+(aq) + 2Cl–(aq) → 2Co2+(aq) + Cl2(g) has the standard cell voltage Ecell= 0.46 V. Given E = 1.36 V for the reaction Cl2(g) + 2e– → 2Cl–(aq), calculate the standard reduction […]
Chapter 18 3 66 Calculate The Cell Voltage For The
Chapter 18 – Electrochemistry 66. Calculate the cell voltage for the following reaction: Cu2+ (0.010 M) + H2(1 atm) → Cu(s) + 2H+( pH = 7.0) A. 0.19 V B. –0.01 V C. 0.34 V D. 0.69 V E. 0.49 […]
Chapter 18 4 99 Find The Emf The Cell Described
Chapter 18 – Electrochemistry Topic: Electrochemistry 99. Find the emf of the cell described by the cell diagram Fe | Fe2+ (1.500M) || Au3+ (0.00400M) | Au. A. 1.99 V B. 1.89 V C. 1.94 V D. 1.66 V E. […]
Chapter 18 5 128 Write The Formula The Weakest Reducing
Chapter 18 – Electrochemistry 128. Write the formula of the weakest reducing agent given the following standard reduction potentials in acid solution: A. Zn(s) B. Sn2+ C. O2 D. H2O E. None of the above Bloom’s Level: 4. Analyze Difficulty: […]
Chapter 19 1 Alpha Particles Are Identical Protons Helium Atoms
Chapter 19 – Nuclear Chemistry Chapter 19 Nuclear Chemistry 1. Alpha particles are identical to A. protons. B. helium atoms. C. hydrogen atoms. D. helium nuclei. E. electrons. Bloom’s Level: 2. Understand Difficulty: Easy Gradable: automatic Section: 19.01 Subtopic: Radioactivity […]
Chapter 19 2 26 The Only Stable Isotope Aluminum Aluminum27
Chapter 19 – Nuclear Chemistry 26. The only stable isotope of aluminum is aluminum-27. What type of radioactive decay should be expected from A. B. C. D. E. Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: 19.02 Subtopic: Nuclear […]
Chapter 19 3 64 Which Type Nuclear Process Requires Extremely
Chapter 19 – Nuclear Chemistry 64. Which type of nuclear process requires an extremely high temperature (millions of degrees)? A. beta decay B. fission reaction C. fusion reaction D. alpha decay E. positron emission Bloom’s Level: 2. Understand Difficulty: Easy […]
Chapter 19 4 98 Determine The Decay Rate For Radioisotope
Chapter 19 – Nuclear Chemistry 97. Select True or False: The type of nuclear process illustrated below is called electron capture. TRUE Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: 19.02 Subtopic: Radioactivity and Nuclear Stability Topic: Nuclear Chemistry […]
Chapter 19 5 114 When 162re Nucleus Emits Alpha Particle
Chapter 19 – Nuclear Chemistry 114. When a 162Re nucleus emits an alpha particle, the nuclear species that results is _____________. A. tantalum-159 B. iridium-158 C. tantalum-158 D. iridium-166 E. None of the above Bloom’s Level: 4. Analyze Difficulty: Medium […]
Chapter 2 1 Cathode Ray Tube Electrons Pass From The
Chapter 02 – Atoms, Molecules, and Ions Chapter 02 Atoms, Molecules, and Ions 1. In a cathode ray tube A. electrons pass from the anode to the cathode. B. electrons pass from the cathode to the anode. C. protons pass […]
Chapter 2 2 56 Give The Formula For Cobaltii Chlorate
Chapter 02 – Atoms, Molecules, and Ions 56. Give the formula for cobalt(II) chlorate dihydrate. A. CoCl2·2H2O B. CoClO3(H2O)2 C. Co(ClO3)2(H2O)2 D. Co(ClO3)2·2H2O E. Co2(ClO3)3·2H2O Bloom’s Level: 3. Apply Difficulty: Medium Gradable: automatic Section: 02.07 Subtopic: Nomenclature Topic: Components of […]
Chapter 2 3 105 There Are The Seven Elements That
Chapter 02 – Atoms, Molecules, and Ions 105. There are the seven elements that naturally occur as diatomic molecules. This list contains four of those plus one that does not fit this distinction. Which one of the following does not […]
Chapter 2 4 136 What The Name H3po3 Phosphoric Acid
Chapter 02 – Atoms, Molecules, and Ions 135. Select True or False: The name of HF is hydrofluoric acid. TRUE Bloom’s Level: 3. Apply Difficulty: Medium Gradable: automatic Section: 02.07 Subtopic: Nomenclature Topic: Components of Matter 136. What is the […]
Chapter 20 1 The Regions The Earths Atmosphere Listed From
Chapter 20 – Chemistry in the Atmosphere Chapter 20 Chemistry in the Atmosphere 1. The regions of the earth’s atmosphere listed from lowest altitude to highest altitude are: A. mesosphere, troposphere, thermosphere, stratosphere. B. troposphere, stratosphere, mesosphere, thermosphere. C. troposphere, […]
Chapter 20 2 29 Acid Rain Precipitation Having That Above
Chapter 20 – Chemistry in the Atmosphere 29. Acid rain is precipitation having a pH that is A. above 7.0 B. below 5.5 C. below 7.0 D. above 8.6 E. above 10.0 Bloom’s Level: 3. Apply Bloom’s Level: 4. Analyze […]
Chapter 21 1 Naturally Occurring Substance With Range Chemical Composition
Chapter 21 – Metallurgy and the Chemistry of Metals Chapter 21 Metallurgy and the Chemistry of Metals 1. A naturally occurring substance with a range of chemical composition is A. an element. B. a mineral. C. gangue. D. an ore. […]
Chapter 21 2 33 The Valence Electron Configuration For The
Chapter 21 – Metallurgy and the Chemistry of Metals 33. The valence electron configuration for the alkaline earth metals is represented by which of the following (n = outermost shell)? A. ns1 B. ns2 C. ns2np1 D. ns2 np2 E. […]
Chapter 22 1 Which One These Elements Liquid Room Temperature
Chapter 22 – Nonmetallic Elements and Their Compounds Chapter 22 Nonmetallic Elements and Their Compounds 1. Which one of these elements is a liquid at room temperature? A. bromine B. chlorine C. fluorine D. iodine E. selenium Bloom’s Level: 2. […]
Chapter 22 2 24 Which These Industrial Chemicals Produced The
Chapter 22 – Nonmetallic Elements and Their Compounds 24. Which of these industrial chemicals is produced in the greatest amount annually? A. HNO3 B. H3PO4 C. H2 D. H2SO4 E. HClO3 Bloom’s Level: 3. Apply Difficulty: Medium Gradable: automatic Section: […]
Chapter 23 1 The Electron Configuration Atom Ne3s23d2 Ne 3s24d2
Chapter 23 – Transition Metals Chemistry and Coordination Compounds Chapter 23 Transition Metals Chemistry and Coordination Compounds 1. The electron configuration of a Ti atom is A. [Ne]3s23d2. B. [Ne] 3s24d2. C. [Ar]4s23d2. D. [Ar]4s24d2. E. [Ar]3d4. Bloom’s Level: 4. […]
Chapter 23 2 42 Which The Following Complexes Has Optical
Chapter 23 – Transition Metals Chemistry and Coordination Compounds 42. Which of the following complexes has optical (chiral) isomers? A. [Co(H2O)4Br2]+ B. [Co(en)Cl4]– C. [Co(en)(H2O)4]3+ D. [Co(en)2Cl2]+ E. Co(H2O)3Cl3 Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: 23.04 Subtopic: […]
Chapter 23 3 67 Copper Can Separated From Iron The
Chapter 23 – Transition Metals Chemistry and Coordination Compounds 67. Copper can be separated from iron in the ore chalcopyrite (CuFeS2) by heating the ore in the presence of oxygen to form copper(I) sulfide, iron(II) oxide, and one other product. […]
Chapter 24 1 Alkanes Have The General Formula Cnh2n4 Cnh2n2
Chapter 24 – Organic Chemistry Chapter 24 Organic Chemistry 1. Alkanes have the general formula A. CnH2n–4. B. CnH2n–2. C. CnH2n. D. CnH2n+2. E. CnH2n+4. Bloom’s Level: 3. Apply Difficulty: Easy Gradable: automatic Section: 24.02 Subtopic: Alkanes Topic: Organic Molecules […]
Chapter 24 2 39 Which Type Organic Compound Contains Hydroxyl
Chapter 24 – Organic Chemistry 39. Which type of organic compound contains a hydroxyl functional group? A. ester B. ether C. carboxylic acid D. aldehyde E. ketone Bloom’s Level: 3. Apply Difficulty: Medium Gradable: automatic Section: 24.04 Subtopic: Classes of […]
Chapter 25 1 Polystyrene Results From The Polymerization Poly propene Results
Chapter 25 – Synthetic and Natural Organic Polymers Chapter 25 Synthetic and Natural Organic Polymers 1. Polystyrene results from the polymerization of A. A B. B C. C D. D E. E Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic […]
Chapter 25 2 22 What Type Polymer Represented The Following
Chapter 25 – Synthetic and Natural Organic Polymers 22. What type of polymer is represented by the following repeating segment? A. polyamide B. polyester C. polyether D. polyolefin E. polyethylene Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: 25.02 […]
Chapter 3 1 Atom Helium Has Mass About Four Times
Chapter 03 – Mass Relationships in Chemical Reactions Chapter 03 Mass Relationships in Chemical Reactions 1. An atom of helium has a mass about four times greater than that of an atom of hydrogen. Which choice makes the correct comparison […]
Chapter 3 2 48 How Many Moles Hcl Are Represented
Chapter 03 – Mass Relationships in Chemical Reactions 48. How many moles of HCl are represented by 1.0 1019 HCl molecules? A. 1.7 10–5 mol B. 1.5 10–3 mol C. 1.0 1019 mol D. 37 mol […]
Chapter 3 3 92 What The Coefficient When The Following
Chapter 03 – Mass Relationships in Chemical Reactions 92. What is the coefficient of O2 when the following equation is properly balanced? ___ CH3OH + ___ O2 → ___ CO2 + ___ H2O A. 1 B. 2 C. 3 D. […]
Chapter 3 4 132 Liquid Hexane C6h14 Burns Oxygen Gas
Chapter 03 – Mass Relationships in Chemical Reactions 132. Liquid hexane, C6H14, burns in oxygen gas to yield carbon dioxide and water. What is the minimum mass of oxygen required for the complete reaction of 10.0 mL of hexane? (density […]
Chapter 3 5 Mass Relationships Chemical Reactions 165 Balance
Chapter 03 – Mass Relationships in Chemical Reactions 165. Balance the following chemical equation: C3H6O + O2 → CO2 + H2O A. C3H6O + 4O2 → 3CO2 + 3H2O B. C3H6O + 2O2 → 3CO2 + 3H2O C. C3H6O + […]
Chapter 4 1 Which The Following Compounds Strong Electrolyte H2o
Chapter 04 – Reactions in Aqueous Solutions Chapter 04 Reactions in Aqueous Solutions 1. Which of the following compounds is a strong electrolyte? A. H2O B. CH3OH C. CH3CH2OH D. HF E. NaF Bloom’s Level: 4. Analyze Difficulty: Easy Gradable: […]
Chapter 4 2 42 Identify The Correct Net Ionic Equation
Chapter 04 – Reactions in Aqueous Solutions 42. Identify the correct net ionic equation for the reaction that occurs when solutions of HClO4 and Ba(OH)2 are mixed. A. H+(aq) + 2OH–(aq) → H2O(l) B. H+(aq) + OH–(aq) → H2O(l) C. […]
Chapter 4 3 82 Which The Following Represents Hydrogen Displacement
Chapter 04 – Reactions in Aqueous Solutions 82. Which of the following represents a hydrogen displacement reaction? A. 2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) B. 2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(l) C. N2(g) + 3H2(g) → 2NH3(g) D. […]
Chapter 4 4 128 What Compound Formed Precipitate When Solutions
Chapter 04 – Reactions in Aqueous Solutions 124. Select True or False: CH3OH (methanol) is a weak electrolyte. FALSE Bloom’s Level: 4. Analyze Difficulty: Easy Gradable: automatic Section: 04.01 Subtopic: Ions in Water (Electrolytes) Topic: Aqueous Solutions 125. Select True […]
Chapter 4 5 162 What The Molar Concentration Chloride Ions
Chapter 04 – Reactions in Aqueous Solutions 162. What is the molar concentration of chloride ions in a solution prepared by mixing 100. mL of 2.0 M KCl with 50. mL of a 1.5 M CaCl2 solution? A. 5.3 M […]
Chapter 5 1 What The Pressure The Sample Gas Trapped
Chapter 05 – Gases Chapter 05 Gases 1. What is the pressure of the sample of gas trapped in the open-tube mercury manometer shown below if atmospheric pressure is 736 mmHg and h = 9.2 cm? A. 92 mmHg B. […]
Chapter 5 2 39 what is the molecular formula of the compound?
Chapter 05 – Gases 39. Calculate the density, in g/L, of SF6 gas at 27C and 0.500 atm pressure. A. 3.38 10–3 g/L B. 2.96 g/L C. 22.4 g/L D. 32.9 g/L E. 3.38 kg/L Bloom’s Level: 3. Apply […]
Chapter 5 3 77 100 Gaseous Ammonia And 650 Oxygen
Chapter 05 – Gases 77. 10.0 g of gaseous ammonia and 6.50 g of oxygen gas are introduced into a previously evacuated 5.50 L vessel. If the ammonia and oxygen then react to yield NO gas and water vapor, what […]
Chapter 5 4 104 Calculate The Density So2 Gas Grams
Chapter 05 – Gases 104. Calculate the density of SO2 gas, in grams per liter, at 55C and 1.5 atm. A. 3.2 g/L B. 3.4g/L C. 3.6 g/L D. 3.8g/L E. None of the above Bloom’s Level: 4. Analyze Difficulty: […]
Chapter 6 1 Radiant Energy The Energy Stored Within The
Chapter 06 – Thermochemistry Chapter 06 Thermochemistry 1. Radiant energy is A. the energy stored within the structural units of chemical substances. B. the energy associated with the random motion of atoms and molecules. C. solar energy, i.e. energy that […]
Chapter 6 2 41 Styrene C8h8 One The Substances Used
Chapter 06 – Thermochemistry 41. Styrene, C8H8, is one of the substances used in the production of synthetic rubber. When styrene burns in oxygen to form carbon dioxide and liquid water under standard-state conditions at 25C, 42.62 kJ are released […]
Chapter 6 3 77 Gas Allowed Expand Constant Temperature From
Chapter 06 – Thermochemistry 77. A gas is allowed to expand, at constant temperature, from a volume of 1.0 L to 10.1 L against an external pressure of 0.50 atm. If the gas absorbs 250 J of heat from the […]
Chapter 6 4 0385 Jgc How Many Grams Propane Must
Chapter 06 – Thermochemistry 98. The heat of combustion of propane, C3H8, is 2220 kJ/mol. The specific heat of copper is 0.385 J/gC. How many grams of propane must be burned to raise the temperature of a 10.0 kg block […]
Chapter 7 1 The Following Diagram Wave A Amplitude And
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms Chapter 07 Quantum Theory and the Electronic Structure of Atoms 1. In the following diagram of a wave A. (a) is amplitude and (b) is wavelength B. (a) is […]
Chapter 7 2 36 Which One The Following Sets Quantum
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms 36. Which one of the following sets of quantum numbers is not possible? A. A B. B C. C D. D E. E Bloom’s Level: 4. Analyze Difficulty: Medium […]
Chapter 7 3 73 The Electron Configuration Ground state Copper Atom
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms 73. The electron configuration of a ground-state copper atom is A. [Ar]4s24d4. B. [Ar]4s24p63d3. C. [Ar]4s23d9. D. [Ar]3d9. E. [Ar]4s13d10. Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: […]
Chapter 7 4 104 Calculate The Energy Photon Light With
Chapter 07 – Quantum Theory and the Electronic Structure of Atoms 104. Calculate the energy of a photon of light with a wavelength of 360 nm. A. 3.5 10–19 J B. 4.5 10–19 J C. 5.5 10–19 […]
Chapter 8 1 The Law Octaves Was Proposed Lewis John
Chapter 08 – Periodic Relationships Among the Elements Chapter 08 Periodic Relationships Among the Elements 1. The law of octaves was proposed by A. G. N. Lewis. B. John Newlands. C. Dmitri Mendeleev. D. J. J. Thompson. E. Ernest Rutherford. […]
Chapter 8 2 46 Which The Following The Electron Configuration
Chapter 08 – Periodic Relationships Among the Elements 46. Which of the following is the electron configuration for the bromide ion? A. [Ar] B. [Ar]4s23d104p7 C. [Kr] D. [Kr]5s24d105p7 E. [Xe] Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: […]
Chapter 8 3 85 What Are The Products The Following
Chapter 08 – Periodic Relationships Among the Elements 85. What are the products of the following reaction? CaH2(s) + 2H2O(l) → A. Ca2+(aq) + 3H2(g) + O2(g) B. 2CaOH(s) + H2(g) C. CaO(s) + 3H2(g) D. Ca(OH)2(s) + 2H2(g) E. […]
Chapter 8 4 Periodic Relationships Among The Elements 112
Chapter 08 – Periodic Relationships Among the Elements 112. Consider the following reaction 2A + 3F2 →2AF3. What is the formula for the reaction product if we substitute iodine for fluorine? A. A2I3 B. A3I2 C. AI3 D. A3I E. […]
Chapter 9 1 Which One The Following Most Likely Ionic
Chapter 09 – Chemical Bonding I: Basic Concepts Chapter 09 Chemical Bonding I: Basic Concepts 1. Which one of the following is most likely to be an ionic compound? A. CaCl2 B. CO2 C. CS2 D. SO2 E. OF2 Bloom’s […]
Chapter 9 2 40 Arrange The Following Bonds Order Increasing
Chapter 09 – Chemical Bonding I: Basic Concepts 40. Arrange the following bonds in order of increasing ionic character: B — C C — N C — O C — C A. B — C < C — N < […]
Chapter 9 3 80 The Formal Charge The Sulfur Atom
Chapter 09 – Chemical Bonding I: Basic Concepts 80. The formal charge on the sulfur atom in the resonance structure of sulfur dioxide which has one single bond and one double bond is A. -2. B. -1. C. 0. D. […]
Chapter 9 4 116 The Following Lewis Structure For Of2
Chapter 09 – Chemical Bonding I: Basic Concepts 115. Select True or False: The ion O22- shows both ionic and covalent bonding. FALSE Bloom’s Level: 4. Analyze Difficulty: Medium Gradable: automatic Section: 09.04 Subtopic: Covalent Bonding Subtopic: Ionic Bonding and […]