Archives
Chapter 1 2 how many kilograms of calcium are there in a 173-pound man
103) If 1.4% of the mass of a human body is calcium, how many kilograms of calcium are there in a 173-pound man? A) 1.1 kg Ca B) 5.3 kg Ca C) 1.1 × 102 kg Ca D) 5.3 × […]
Chapter 1 3 If hitting the bull’s-eye is the desired result
Use the drawings below to answer the following questions. 139) If hitting the bull’s-eye is the desired result, Figure (a) represents A) good accuracy and good precision. B) good accuracy and poor precision. C) poor accuracy and good precision. D) […]
Chapter 10 1 Which covalent bond is the most polar
Chemistry, 6e (McMurry/Fay) Chapter 10 Liquids, Solids, and Phase Changes 10.1 Multiple-Choice Questions 1) The bonds in the polyatomic ion CO32– are classified as A) ionic B) metallic C) nonpolar covalent D) polar covalent Answer: D Topic: Section 10.1 Polar […]
Chapter 10 2 Which drawing best shows the molecular polarity of methylamine
95) Which drawing best shows the molecular polarity of methylamine, CH3NH2, and the bond polarities that make a major contribution to the overall molecular polarity? A) drawing (1) B) drawing (2) C) drawing (3) D) drawing (4) 21 Answer: A […]
Chapter 10 3 Consider a compound that undergoes sublimation at 125°C
125) Consider a compound that undergoes sublimation at 125°C and a pressure of one atm. Which of the following could be a heating curve appropriate for heating the compound from 100°C to 150°C? A) graph a B) graph b C) […]
Chapter 11 1 Which of the following mixtures have components which can be
Chemistry, 6e (McMurry/Fay) Chapter 11 Solutions and Their Properties 11.1 Multiple-Choice Questions 1) Which of the following mixtures have components which can be separated by filtration? A) colloids B) solutions C) suspensions D) All of these Answer: C Topic: Section […]
Chapter 11 2 How will the osmotic pressure of an aqueous solution change
98) How will the osmotic pressure of an aqueous solution change as evaporation occurs? A) The osmotic pressure will increase. B) The osmotic pressure will not change. C) The osmotic pressure will decrease. D) The osmotic pressure will increase or […]
Chapter 11 3 what region of the diagram corresponds to vapor
130) Assume that you start with a mixture containing 0.80 mol of decane and 0.20 mol of octane, what region of the diagram corresponds to vapor? A) region a B) region b C) region c D) regions a and c […]
Chapter 12 1 Which term describes the measure of the increase in the concentration
Chemistry, 6e (McMurry/Fay) Chapter 12 Chemical Kinetics 12.1 Multiple-Choice Questions 1) Which term describes the measure of the increase in the concentration of a product per unit time? A) activation energy B) kinetics C) reaction rate D) reaction time Answer: […]
Chapter 12 2 what will happen to the rate of reaction if the concentration
21 A) [C] vs. t B) ln[C] vs. t C) 1/[C] vs. t D) [C]2 vs. t 72) For the zeroth-order reaction: A → products, what will happen to the rate of reaction if the concentration of A is doubled? […]
Chapter 12 3 Consider the first-order decomposition of A molecules
134) Consider the first-order decomposition of A molecules (shaded spheres) in two vessels of equal volume. How will the rate of decomposition in vessel (a) be affected if the volume of the vessel is decreased by a factor of 2? […]
Chapter 13 2 The enthalpy for the following reaction is 136 kJ
76) The enthalpy for the following reaction is 136 kJ. If the reaction takes place in a closed container, which one of the following reaction conditions will not decrease the concentration of water vapor? 2 NaHCO3(s) ⇌ Na2CO3(s) + CO2(g) […]
Chapter 13 3 Which nonequilibrium mixtures will react in the reverse direction
115) The following picture represents the equilibrium state for the reaction A2 + B2 ⇌ 2AB. What is the relationship between the rate constant for the forward reaction, kf, and the rate constant for the reverse reaction kr? A) kf […]
Chapter 14 1 An Arrhenius acid is best defined as a
Chemistry, 6e (McMurry/Fay) Chapter 14 Aqueous Equilibria: Acids and Bases 14.1 Multiple-Choice Questions 1) An Arrhenius acid is best defined as a A) hydroxide donor. B) proton acceptor. C) substance that dissociates in water to produce aqueous hydrogen ions. D) […]
Chapter 14 2 and what is its base dissociation constant
21 dissociation constants of Ka1 = 1.3 × 10-4 and Ka2 = 1.0 × 10-11? A) 3.6 × 10-3 M B) 1.3 × 10-4 M C) 1.3 × 10-5 M D) 1.0 × 10-11 M 89) Which of the following […]
Chapter 14 3 The following pictures represent solutions of three salts
The following pictures represent solutions of three salts MA; water molecules have been omitted for clarity. Dotted spheres represent Ay– ions; gray spheres represent Mx+ ions; black spheres represent oxygen atoms; and unshaded spheres represent hydrogen atoms. 151) Which picture […]
Chapter 15 1 Which is a net ionic equation for the neutralization
Chemistry, 6e (McMurry/Fay) Chapter 15 Applications of Aqueous Equilibria 15.1 Multiple-Choice Questions 1) Which is a net ionic equation for the neutralization of a strong acid with a strong base? A) HCl(aq) + NaOH(aq) ⇌ H2O(l) + NaCl(aq) B) H3O+(aq) […]
Chapter 15 2 Which pair of ions can be separated by the addition
93) Which pair of ions can be separated by the addition of sulfide ion? A) Ag+ and Cu2+ B) Cu2+ and Bi3+ C) Pb2+ and Ca2+ D) Ca2+ and Ba2+ Answer: C Topic: Section 15.14 Separation of Ions by Selective […]
Chapter 15 3 What is the hydronium ion concentration in a solution prepared
136) If solution (1) is a saturated solution of CuS, which of solutions (2)-(4) are saturated? A) (2) B) (3) C) (4) D) None of these Answer: D Topic: Conceptual Problems 137) If solution (1) is a saturated solution of […]
Chapter 16 1 Which of the following processes are spontaneous
Chemistry, 6e (McMurry/Fay) Chapter 16 Thermodynamics: Entropy, Free Energy, and Equilibrium 16.1 Multiple-Choice Questions 1) Which of the following statements is not true? A) The reverse of a spontaneous reaction is always nonspontaneous. B) A spontaneous process always moves toward […]
Chapter 16 2 For a reaction at constant temperature, as Q increases
A) ΔG°f for H2O (s) B) ΔG°f for H2O (l) C) ΔG°f for H2O (g) D) 1/2ΔG°f for O2 (g) plus ΔG°f for H2O (g) Answer: B Topic: Section 16.9 Standard Free Energies of Formation 72) Which of the following […]
Chapter 17 1 Doubling all the coefficients in the equation for the cell
Chemistry, 6e (McMurry/Fay) Chapter 17 Electrochemistry 17.1 Multiple-Choice Questions 1) Which of the following terms can be used to describe an electrochemical cell in which a spontaneous chemical reaction generates an electric current? I. an electrolytic cell II. a galvanic […]
Chapter 17 2 A steel pipe can be protected from corrosion by attaching
82) Which statement below is not true? A) The cell reactants in a fuel cell are continuously supplied from an external source. B) A fuel cell is a galvanic cell. C) Modern fuel cells can be easily regenerated using household […]
Chapter 17 3 What is the quantitative change in the cell voltage on
Consider the following galvanic cell. 132) What is the quantitative change in the cell voltage on increasing the ion concentration in the anode compartment by a factor of 10? A) +0.06 V B) +0.03 V C) -0.03 V D) -0.06 […]
Chapter 18 2 The following pictures represent binary hydrides
The following pictures represent binary hydrides, AHx, where A = Na, Ti, C, or Cl. Lightly-shaded spheres represent H atoms or ions and darkly-colored spheres represent atoms or ions of element A. 98) Which hydride has the lowest melting point? […]
Chapter 19 1 What are the three most abundant elements in the Earth’s crust
Chemistry, 6e (McMurry/Fay) Chapter 19 The Main-Group Elements 19.1 Multiple-Choice Questions 1) What are the three most abundant elements in the Earth’s crust? A) H, O, C B) O, Al, Si C) O, Si, Fe D) Al, Si, Fe Answer: […]
Chapter 19 2 Which group 6A element is naturally radioactive
106) Which group 6A element is naturally radioactive? A) S B) Se C) Te D) Po Answer: D Topic: Section 19.12 Group 6A Elements 107) What statement is not characteristic about group 6A elements? A) Oxygen, sulfur, and selenium are […]
Chapter 19 3 What is the likely formula for the binary compound formed
148) At 25°C the elements indicated by the shaded area in the following periodic table are all A) diatomic molecules. B) gases. C) liquids. D) nonmetals that are solids. Answer: D Topic: Conceptual Problems 149) What is the name for […]
Chapter 2 1 How Many Moles And How Many Atoms
Chemistry, 6e (McMurry/Fay) Chapter 2 Atoms, Molecules, and Ions 2.1 Multiple-Choice Questions 1) According to history, the concept that all matter is composed of atoms was first proposed by A) the Greek philosopher Democritus, but not widely accepted until modern […]
Chapter 2 2 The shaded Spheres Represent Carbon Atoms And The
21 100) What is the most likely charge on an ion of phosphorus, P? A) 5- B) 3- C) 3+ D) 5+ 101) Which element can form more than one kind of monatomic ion? A) Ca B) Cl C) Cr […]
Chapter 2 3 Give the molecular formula corresponding to the following
163) Give the molecular formula corresponding to the following ball-and-stick molecular representation of vitamin C (ascorbic acid) (gray = C, unshaded = H, black = O). In writing the formula, list the atoms in alphabetical order. A) CHO B) C3H4O3 […]
Chapter 20 1 In which blocks of the periodic table are the transition
Chemistry, 6e (McMurry/Fay) Chapter 20 Transition Elements and Coordination Chemistry 20.1 Multiple-Choice Questions 1) The number of transition series is A) one B) two C) four D) seven Answer: C Topic: Introduction 2) In which blocks of the periodic table […]
Chapter 20 2 Which one of the following complexes is considered
95) Which one of the following complexes is considered to be tetrahedral? A) [FeCl4]– B) [Ni(CN)4]2- C) [PtCl4]2- D) [PdCl2(NH3)2] Answer: A Topic: Section 20.12 Crystal Field Theory 96) How many unpaired electrons will Co have in the complex [CoCl4]2-? […]
Chapter 21 1 What minerals are important commercial sources of metals
Chemistry, 6e (McMurry/Fay) Chapter 21 Metals and Solid-State Materials 21.1 Multiple-Choice Questions 1) What are the most abundant minerals in the earth’s crust? A) aluminosilicates and silicates B) chlorides and iodides C) nitrates and phosphates D) oxides and sulfides Answer: […]
Chapter 21 2 Which of these elements is likely to be found in nature as
A) TiCl4 + 4 HOCH2CH3 + 4 NH3 → Ti(OCH2CH3)4 + 4 NH4Cl (in benzene) B) Ti(OCH2CH3)4 + 4 H2O → Ti(OH)4 + 4 HOCH2CH3 C) (HO)3–Ti-OH + HO-Ti-(OH)3 → (HO)3–Ti-O-Ti(OH)3 + H2O D) 4 Ti(OH)4 + heat → 2 […]
Chapter 22 1 The most important characteristic of carbon atoms for forming organic
Chemistry, 6e (McMurry/Fay) Chapter 22 Nuclear Chemistry 22.1 Multiple-Choice Questions 1) Mass defect is the mass lost when A) an atom is formed from individual protons, neutrons, and electrons. B) a nucleus is formed from individual protons and neutrons. C) […]
Chapter 23 1 Which one of the structures below is different from the other three
Chemistry, 6e (McMurry/Fay) Chapter 23 Organic and Biological Chemistry 23.1 Multiple-Choice Questions 1) The most important characteristic of carbon atoms for forming organic molecules is A) ability to bond together to form long chains. B) ability to form multiple covalent […]
Chapter 23 2 All Are Branched Hydrocarbons b None Are Branched
80) The C-C=O bond angle in acetic acid, shown below, is closest to O CH3C–OH A) 90°. B) 109.5°. C) 120°. D) 180°. Answer: C Topic: Section 23.8 Carbonyl Compounds 81) The H-C-H bond angles in acetic acid, shown below, […]
Chapter 23 3 All Three Are Equal Crystals answer Atopic Section
144) What does the term “essential” mean when referring to amino acids? These are the amino acids which A) are necessary for digestion. B) are necessary for respiration. C) are synthesized in our bodies. D) we must obtain from our […]
Chapter 3 1 Which one of the following statements about balanced equations
Chemistry, 6e (McMurry/Fay) Chapter 3 Formulas, Equations, and Moles 3.1 Multiple-Choice Questions 1) Chemical equations are balanced in order to obey the law of A) definite proportions. B) mass action. C) mass conservation. D) multiple proportions. Answer: C Topic: Section […]
Chapter 3 2 Which ball and stick model shown above represents acetone
21 98) Acetone has the formula C3H6O. Which ball and stick model shown above represents acetone? [gray spheres = C, black spheres = O, unshaded spheres = H] A) model a) B) model b) C) model c) D) model d) […]
Chapter 3 3 Which of the following has the greatest mass
17) Which of the following has the greatest mass? A) 3.88 × 1022 molecules of O2 B) 1.00 g of O2 C) 0. 0312 mol of O2 D) All of these have the same mass. Answer: A Topic: Section 3.3 […]
Chapter 4 1 What is the molar concentration of sulfate ions in a
1 Chemistry, 6e (McMurry/Fay) Chapter 4 Reactions in Aqueous Solutions 4.1 Multiple-Choice Questions 1) The reaction HNO3(aq) + KOH(aq) → KNO3(aq) + H2O(l) is best classified as a(n) A) acid-base neutralization reaction. B) oxidation-reduction reaction. C) precipitation reaction. D) single […]
Chapter 4 2 What is the oxidation half reaction in the following chemical
93) What is the oxidation half reaction in the following chemical reaction? Cr2O72-(aq) + 6 Cl–(aq) + 14 H+(aq) → 2 Cr3+(aq) + 3 Cl2(aq) + 7 H2O(l) A) Cr2O72-(aq) + 14 H+(aq) + 6e– → 2 Cr3+(aq) + 7 […]
Chapter 5 1 Arrange the following spectral regions in order of increasing
Chemistry, 6e (McMurry/Fay) Chapter 5 Periodicity and the Atomic Structure of Atoms 5.1 Multiple-Choice Questions 1) Arrange the following spectral regions in order of increasing wavelength: infrared, microwave, ultraviolet, visible. A) microwave < infrared < visible < ultraviolet B) microwave […]
Chapter 5 2 For the fourth-shell orbital shown below
88) For the fourth-shell orbital shown below, what are the principal quantum number, n, and the angular momentum quantum number, l? A) n = 4 and l = 0 B) n = 4 and l = 1 C) n = […]
Chapter 6 1 How many electrons are in the outermost shell of the In3+ ion
1 Chemistry, 6e (McMurry/Fay) Chapter 6 Ionic Bonds and Some Main-Group Chemistry 6.1 Multiple-Choice Questions 1) Which contains ionic bonds? A) CCl4 B) CaCl2 C) Cl2 D) HCl 2) Which contains covalent bonds? A) NaH and HCl B) only HCl […]
Chapter 6 2 indicated by letter on the periodic table above
19 90) Which element, indicated by letter on the periodic table above, has a 2+ ion with the electron configuration [Ar]3d10? A) A B) B C) C D) D 91) Which element, indicated by letter on the periodic table above, […]
Chapter 7 1 Which molecule has the weakest bonds
Chemistry, 6e (McMurry/Fay) Chapter 7 Covalent Bonds and Molecular Structure 7.1 Multiple-Choice Questions 1) Covalent bonding is a A) gain of electrons. B) loss of electrons. C) transfer of electrons. D) sharing of electrons. Answer: D Topic: Introduction 2) Which […]
Chapter 7 2 what would be the expected bond orders for
91) The following MO diagram is appropriate for Li2 and Be2. Based on this diagram, A) both are stable and diamagnetic. B) Li2 is stable and diamagnetic, but Be2 is unstable. C) Be2 is stable and diamagnetic, but Li2 is […]
Chapter 7 3 Which molecule has a central atom that uses the set of hybrid
152) Identify the set of hybrid orbitals shown below. A) sp B) sp2 C) sp3 D) None of these Answer: C Topic: Conceptual Problems 153) Which molecule has a central atom that uses the set of hybrid orbitals shown below […]
Chapter 8 1 how many minutes could the microwave oven be operated
Chemistry, 6e (McMurry/Fay) Chapter 8 Thermochemistry: Chemical Energy 8.1 Multiple-Choice Questions 1) At 298 K the average kinetic energy is the same for H2, He, and N2. The gas with the highest average velocity is A) H2. B) He. C) […]
Chapter 8 2 How can this be explained in terms of ΔH and ΔS
83) The reaction 4 Ag(s) + O2(g) → 2 Ag2O(s) favors Ag2O at low temperature, but it favors Ag and O2 at high temperatures. How can this be explained in terms of ΔH and ΔS? A) ΔH is negative and […]
Chapter 9 1 Carbon dioxide is a gas which causes environmental concern because
Chemistry, 6e (McMurry/Fay) Chapter 9 Gases: Their Properties and Behavior 9.1 Multiple-Choice Questions 1) Carbon dioxide is a gas which causes environmental concern because of the greenhouse effect. What is the approximate percentage (by volume) of CO2 in the atmosphere? […]
Chapter 9 2 of the gas inside the above apparatus if the outside pressure
98) What is the pressure (in mm Hg) of the gas inside the above apparatus if the outside pressure, Patm, is 740 mm Hg and the difference in mercury levels, Δh, is 30 mm Hg? A) 30 mm Hg B) […]