Archives: Quiz
Chapter 1 She agrees to repay the money in 3 months with simple interest of 8.5%
Chapter 15 3 Of the elements indicated on the periodic table shown above
A) HZ < HY < HX B) HY < HZ < HX C) HZ < HX < HY D) HX < HZ < HY Answer: D Diff: 3 Var: 1 Topic: Conceptual Problems Learning Obj: LO 15.3 Predict the relative […]
Pretests Find the length of the lot. Solve the equation or inequality
Chapter 15 2 What is the percent dissociation of a benzoic acid solution
60) The pH of 0.255 M HCN is 4.95. What is the value of Ka for hydrocyanic acid? A) 1.3 × 10–10 B) 4.9 × 10–10 C) 1.1 × 10–5 D) 4.4 × 10-5 Answer: B Diff: 3 Var: 1 […]
Chapter 15 1 Which of the following should have the lowest bond strength
Chemistry, 7e (McMurry/Fay) Chapter 15 Aqueous Equilibria: Acids and Bases 15.1 Multiple-Choice Questions 1) When dissolved in water, which of the following compounds is an Arrhenius acid? A) HCN B) NaOH C) NaF D) CH3CH2OH Answer: A Diff: 2 Var: […]
Chapter 14 4 Ammonium bromide is a crystalline solid that decomposes
54 22) The equilibrium constant, Kp, equals 3.40 for the isomerization reaction: cis-2-butene ⇌ trans-2-butene. If a flask initially contains 0.250 atm of cis-2-butene and 0.205 atm of trans-2-butene, what is the equilibrium pressure of each gas? A) P(cis-2-butene) = […]
Chapter 14 3 At a certain temperature, hydrogen and iodine react
The following pictures represent the initial state and the equilibrium state for the gaseous state reaction of A2 molecules (shaded spheres) with B atoms (unshaded spheres) to give AB molecules. 96) What is the best balanced chemical equation for the […]
Chapter 14 2 Gaseous hydrogen bromide decomposes at elevated temperatures
53) Gaseous hydrogen bromide decomposes at elevated temperatures according to the following equation: . At a certain temperature a 2.00 L flask is initially filled only with 0.600 mol of HBr. What is the value of Kc at that temperature […]
Chapter 14 1 Write an equilibrium constant expression Kc for gas
1 Chemistry, 7e (McMurry/Fay) Chapter 14 Chemical Equilibrium 14.1 Multiple-Choice Questions 1) Which one of the following statements does not describe the equilibrium state? A) Equilibrium is dynamic and there is no net conversion to reactants and products. B) The […]
Chapter 13 4 what are the units for the rate constant
14) The reaction below is first order in H2 and second order in NO. What is the rate law for this reaction? 2 H2(g) + 2 NO(g) → N2(g) + 2 H2O(g) A) Rate = 2k[H2][NO] B) Rate = k[H2][NO]2 […]
Chapter 13 3 What is the rate constant k of this reaction in vessel
93) The following reaction is second order in A and first order in B: A + B → Products Rate = k[A]2[B] What is the rate constant k of this reaction in vessel (b) relative to the rate constant k […]
Chapter 13 2 The fraction of collisions with sufficient energy to react is
49) For the hypothetical second order reaction: A → products, the general rate law is: rate = k[A]2. How long is the third half-life of the reaction if [A]0 is 0.080 M and the first half-life is 22 minutes? A) […]
Chapter 13 1 The decomposition of dinitrogen pentoxide is described
Chemistry, 7e (McMurry/Fay) Chapter 13 Chemical Kinetics 13.1 Multiple-Choice Questions 1) Molecular hydrogen can be made from methane gas by the reaction below. How is the rate of disappearance of CH4 related to the rate of appearance of H2? – […]
Chapter 12 3 What is the mole fraction of oxygen in a gas mixture that is
A) solute-solute interactions are much larger than solvent-solvent or solute-solvent interactions. B) solvent-solvent interactions are much larger than solute-solvent or solute-solute interactions. C) solute-solvent interactions are much larger than solvent-solvent or solute-solute interactions. D) solute-solvent interactions are similar to solvent-solvent […]
Chapter 12 2 How will the osmotic pressure of an aqueous solution change
76) 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 12 1 Which of the following mixtures have components which
Chemistry, 7e (McMurry/Fay) Chapter 12 Solutions and Their Properties 12.1 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 Diff: 1 […]
Chapter 11 3 How Many And Ions are Each Unit Cell
8) When a liquid is heated at its boiling point, the A) ionic bonds are broken, allowing sublimation to occur. B) temperature of the liquid decreases. C) temperature of the liquid remains the same as long as any liquid is […]
Chapter 11 2 Which of the following could be a heating curve appropriate
21 A) body-centered cubic B) cubic closest packed (face-centered cubic) C) hexagonal closest packed D) simple cubic A certain mineral crystallizes in the cubic unit cell shown below. 68) What kind of packing do the anions adopt? A) body-centered cubic […]
Chapter 11 1 When a narrow diameter glass tube is inserted into
Chemistry, 7e (McMurry/Fay) Chapter 11 Liquids, Solids, and Phase Changes 11.1 Multiple-Choice Questions 1) When a narrow diameter glass tube is inserted into a body of water, water rises in the tube and its surface inside is concave upwards. Which […]
Chapter 10 3 What is the final pressure if the temperature is changed
39 18) A steel bottle contains argon gas at STP. What is the final pressure if the temperature is changed to 125°C? A) 0.686 atm B) 0.748 atm C) 1.34 atm D) 1.46 atm 19) A gas occupies 22.4 L […]
Chapter 10 2 The lowest atmospheric temperatures are found at the
72) The lowest atmospheric temperatures are found at the A) earths surface. B) troposphere/stratosphere junction. C) stratosphere/mesosphere junction. D) mesosphere/thermosphere junction. Answer: D Diff: 1 Var: 1 Topic: Section 10.9 The Earth’s Atmosphere and Pollution Global Obj: G1 Demonstrate an […]
Chapter 10 1 Chloroform Volatile Liquid Once Commonly Used The
Chemistry, 7e (McMurry/Fay) Chapter 10 Gases: Their Properties and Behavior 10.1 Multiple-Choice Questions 1) Which of the following instruments directly measures the pressure of a gas? A) spectrometer B) manometer C) polarimeter D) gas chromatograph Answer: B Diff: 1 Var: […]
Chapter 9 3 Sodium metal reacts with water to produce hydrogen gas
12) A gas absorbs 0.0 J of heat and then performs 13.1 J of work. The change in internal energy of the gas is A) 26.2 J B) 13.1 J C) -26.2 J D) -13.1 J Answer: D Diff: 3 […]
Chapter 9 2 Which combination always results in a reaction being spontaneous
21 63) Which of the following is not true? A) A spontaneous reaction need not occur immediately. B) A spontaneous reaction must be exothermic and must have an increase in entropy. C) The reverse of a nonspontaneous reaction is always […]
Chapter 9 1 Which is a measure of the sum of the kinetic and potential
1 Chemistry, 7e (McMurry/Fay) Chapter 9 Thermochemistry: Chemical Energy 9.1 Multiple-Choice Questions 1) Which of the following states the first law of thermodynamics (conservation of energy)? A) w = –PΔV B) ΔEsystem = –ΔEsurroundings C) ΔH = ΔE + PΔV […]
Chapter 8 4 Which covalent bond is the most polar
17) The orbital hybridization on the carbon atom in S CN – is A) sp. B) sp2. C) sp3. D) sp3d2. Answer: A Diff: 2 Var: 5 Topic: Section 8.4 Other Kinds of Hybrid Orbitals Learning Obj: LO 8.6 Write […]
Chapter 8 3 Which drawing best accounts for the polarity of water
41 Atoms that are electron poor and carry a δ+ charge are shown in blue. Atoms that are electron rich and carry a δ– charge are shown in red. Atoms with little or no charge are shown in green. The […]
Chapter 8 2 What is the geometry around the central atom in the following
61) What is the geometry around the central atom in the following molecular model of I3–? A) trigonal bipyramidal B) seesaw C) T-shaped D) linear Answer: D Diff: 2 Var: 1 Topic: Conceptual Problems Learning Obj: LO 8.2 Use the […]
Chapter 8 1 Which Substance Each The Following Pairs Expected
Chemistry, 7e (McMurry/Fay) Chapter 8 Covalent Compounds: Bonding Theories and Molecular Structure 8.1 Multiple-Choice Questions 1) Based on VSEPR theory, which should have the smallest XAX bond angle? A) B) C) D) Answer: C Diff: 2 Var: 1 Topic: Section […]
Chapter 7 2 Assign formal charges to each atom in the resonance form
45) Two resonance forms for SOCl2 are given below. Which is favored by the octet rule and which by formal charge considerations? A) I is favored by the octet rule and by formal charge considerations. B) I is favored by […]
Chapter 7 1 Arrange The Following Order Increasing Ionic Character
Chemistry, 7e (McMurry/Fay) Chapter 7 Covalent Bonding and Electron-Dot Structures 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 Diff: 1 Var: 1 […]
Chapter 6 3 Which ionization process requires the most energy
15) Of the following, which element has the highest first ionization energy? A) Ba B) I C) Rb D) Po Answer: B Diff: 2 Var: 5 Topic: Section 6.3 Ionization Energy Learning Obj: LO 6.5 Order elements from lowest to […]
Chapter 6 2 Which sphere most likely represents the Ca2+ ion
The four spheres below represent K+, Ca2+, Cl–, and S2-, not necessarily in that order. 62) Which sphere most likely represents the K+ ion? A) A B) B C) A or B D) C or D Answer: B Diff: 3 […]
Chapter 6 1 Both Decrease One Traverses Period From Left
Chemistry, 7e (McMurry/Fay) Chapter 6 Ionic compounds: Periodic Trends and Bonding 6.1 Multiple-Choice Questions 1) What is the ground-state electron configuration of the ion Hg2+? A) [Xe]4f145d10 B) [Xe]4f145d86s2 C) [Xe]4f145d106s2 D) [Xe]4f145d106s26p2 Answer: A Diff: 2 Var: 1 Topic: […]
Chapter 5 3 what is the wavelength of the photon emitted
4) For hydrogen, what is the wavelength of the photon emitted when an electron drops from a 4d orbital to a 2p orbital in a hydrogen atom? The Rydberg constant is 1.097 × 10-2 nm-1. A) 656.3 nm B) 486.2 […]
Chapter 5 2 Global OBJ Read And Interpret Graphs And
71) 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 5 1 Mechanical Model The Atom Orbitals And Quantum
Chemistry, 7e (McMurry/Fay) Chapter 5 Periodicity and the Electronic 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 4 4 Demonstrate The Quantitative Skills Needed Succeed Chemistry
48) How many milliliters of 0.260 M Na2S are needed to react with 45.00 mL of 0.315 M AgNO3? Na2S(aq) + 2 AgNO3(aq) → 2 NaNO3(aq) + Ag2S(s) A) 27.3 mL B) 54.5 mL C) 74.3 mL D) 109 mL […]
Chapter 4 3 What is the concentration of FeCl3 in a solution prepared
111) A hydrocarbon of unknown formula CxHy was submitted to combustion analysis with the following results. What is the empirical formula of the hydrocarbon? A) C5H2 B) C5H4 C) C10H4 D) C10H8 41 Answer: B Diff: 3 Var: 1 Topic: […]
Chapter 4 2 For Clarity H2o Molecules Are Not Shown
73) Disproportionation is a reaction in which a substance is both oxidized and reduced in the reaction. Which is a disproportionation reaction? A) ClO3–(aq) + 3 Cu(s) + 6 H+(aq) → Cl–(aq) + 3 Cu2+(aq) + 3 H2O(l) B) ClO–(aq) […]
Chapter 4 1 Global OBJ Demonstrate The Ability Think Critically
Chemistry, 7e (McMurry/Fay) Chapter 4 Reactions in Aqueous Solutions 4.1 Multiple-Choice Questions 1) Molarity is defined as A) moles of solute per liter of solution. B) moles of solute per liter of solvent. C) moles of solvent per liter of […]
Chapter 3 3 Dinitrogen monoxide gas decomposes to form nitrogen
28) Dinitrogen monoxide gas decomposes to form nitrogen gas and oxygen gas. How many grams of oxygen are formed when 20.0 g of dinitrogen monoxide decomposes? A) 0.138 g B) 7.27 g C) 14.5 g D) 29.1 g Answer: B […]
Chapter 3 2 What is the balanced chemical equation for the reaction
66) What is the balanced chemical equation for the reaction of element A (unshaded spheres) with element B (shaded spheres) as represented below? A) A + B → AB B) 4A + 2B → 4AB C) A2 + B2 → […]
Chapter 3 1 What The Percent Yield The Density Co2
Chemistry, 7e (McMurry/Fay) Chapter 3 Mass Relationships in Chemical Reactions 3.1 Multiple-Choice Questions 1) Given the chemical equation: N2 + 3 H2 → 2 NH3. On a molecular level, what do the coefficients mean? A) 1 atom of nitrogen reacts […]
Chapter 2 5 Answer Periods Groups Diff Var Topic Section
91) The chemical formula for chlorous acid is A) H ClO(aq). B) H ClO2(aq). C) H ClO3(aq). D) H Cl O4(aq). Answer: B Diff: 2 Var: 5 Topic: Section 2.12 Naming Chemical Compounds Learning Obj: LO 2.26 Convert between name […]
Chapter 2 4 An atom that has an atomic number of 35
61 43) How many protons (p) and neutrons (n) are in an atom of Ra? A) 88 p, 138 n B) 88 p, 226 n C) 138 p, 88 n D) 226 p, 88 n 44) How many protons (p) […]
Chapter 2 3 Chlorine Belongs The Group The Periodic
114) If shaded and unshaded spheres represent atoms of different elements, as shown in drawing (1), which drawings (2)-(4) represent the law of multiple proportions? A) only drawings (2) and (3) B) only drawings (2) and (4) C) only drawings […]
Chapter 2 2 What group of elements does the shaded area in the following
73) The ion NO2– is named A) nitrate ion. B) nitrite ion. C) nitrogen dioxide ion. D) nitrogen(II) oxide ion. Answer: B Diff: 2 Var: 1 Topic: Section 2.12 Naming Chemical Compounds Learning Obj: LO 2.25 Convert between formula and […]
Chapter 2 1 The horizontal rows of the periodic table are called
Chemistry, 7e (McMurry/Fay) Chapter 2 Atoms, Molecules, and Ions 2.1 Multiple-Choice Questions 1) What is the chemical symbol for manganese? A) Hg B) Mg C) Mn D) Na Answer: C Diff: 2 Var: 1 Topic: Section 2.1 Chemistry and the […]
Chapter 1 3 What will be the new volume of water
39) A 3.20 g sample of pyrite (density = 4.5 g /mL0) is placed into a graduated cylinder with 15.64 mL of water. What will be the new volume of water? A) 30.04 B) 14.93 C) 16.35 D) 0.71 mL […]