Chemistry concepts and calculations
117302 questions • Page 2019 / 2347
Which of the following are effects produced by an enzyme on the reaction S lefta
Which of the following are effects produced by an enzyme on the reaction S leftarrow rightarrow P with forward rate constant k_1 and reverse reaction rate constant k_2? a) The rea…
Which of the following are enol forms of 2-butanone? what is the major product w
Which of the following are enol forms of 2-butanone? what is the major product when HI is reacted with 3-methyl-2-pentene? 2-iodo 3-methylpentane 3-iodo-3-methylpentane 1-iodo-3-m…
Which of the following are ethers? a) only 2 and 3 b) only 3 and 4 c) only 1 and
Which of the following are ethers? a) only 2 and 3 b) only 3 and 4 c) only 1 and 2 d) 1, 2, 3, and 4 Identify the reagent needed for the following transformation. a) K_2CrO_2/H_2S…
Which of the following are examples of a chemical change? a. Copper building mat
Which of the following are examples of a chemical change? a. Copper building materials develop a green patina over time. b. a match burns c. ethanol evaporates d. Both A and B are…
Which of the following are examples of a chemical change? coffee brewing water b
Which of the following are examples of a chemical change? coffee brewing water boiling nails rusting salt dissolves in water None of the above are chemical changes. How many signi…
Which of the following are good descriptions of what occurs at equilibrium? (Cho
Which of the following are good descriptions of what occurs at equilibrium? (Choose all that apply) a. The reaction quotient, Q, is equal to the equilibrium constant, K. b. The …
Which of the following are good leaving groups? (Circle all that apply) OH^- H_2
Which of the following are good leaving groups? (Circle all that apply) OH^- H_2O Br^- I^- F^- H^- CH_2^- CH_3OH CH_3SH NH_3 Which of the following are Strong bases? (Circle all t…
Which of the following are included in the conditions that an electrochemical ce
Which of the following are included in the conditions that an electrochemical cell must meet if it is a standard electrochemical cell? All solutes in aqueous solution have a conce…
Which of the following are likely reaction pathways for molecules in our atmosph
Which of the following are likely reaction pathways for molecules in our atmosphere? Select all correct answers. Excitation of rotational, vibrational, and electronic states by th…
Which of the following are not at equilibrium? Part A The rates of the forward a
Which of the following are not at equilibrium? Part A The rates of the forward and reverse reactions are equal. The rates of the forward and reverse reactions are equal. The proce…
Which of the following are not formed as a result the action of lipases on lipid
Which of the following are not formed as a result the action of lipases on lipids? How can the carbon skeletons of amino acids enter the common catabolic pathway? The conversion o…
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are permissable sets of quantum numbers for an electron i
Which of the following are permissable sets of quantum numbers for an electron in a hydrogen atom? The atom may be in an excited state (ie. the electron need not be in its ground …
Which of the following are possible consequences of lowering the Lighting Power
Which of the following are possible consequences of lowering the Lighting Power Density on a project? a) Reduce heating loads. b) More controllability over indoor lighting. c) Red…
Which of the following are possible products of the reaction shown? What is the
Which of the following are possible products of the reaction shown? What is the IUPAC name for the following compound? 2-methyl-5-bromocyclohexanol 3-bromo-2-methylcyclahexinol 1-…
Which of the following are procedures you will be doing in Exploring Periodic Tr
Which of the following are procedures you will be doing in Exploring Periodic Trends? One or more answers are correct. You will receive negative points for incorrect answers. a. E…
Which of the following are processes that decrease entropy? (select all that apl
Which of the following are processes that decrease entropy? (select all that aply) Answers Pb2+(aq)+S2?(aq)?PbS(s) NaCl(s)?Na+(aq)+Cl?(aq) Ca2+(aq)+CO2?3(aq)?CaCO3(s) CaO(s)+CO2(g…
Which of the following are pure substances? Calcium chloride, used to melt ice o
Which of the following are pure substances? Calcium chloride, used to melt ice on roads, consists of two elements, calcium and chlorine, in a fixed mass ratio. Sulfur consists of …
Which of the following are quantitative observations? Copper dissolves to give a
Which of the following are quantitative observations? Copper dissolves to give a blue solution. When copper dissolves in nitric acid, a brown gas is evolved. The solubility of sod…
Which of the following are reasons \"high energy phosphate bonds\" are so exergo
Which of the following are reasons "high energy phosphate bonds" are so exergonic? (More than one can be chosen) a) The P-O bond is a high energy bond relative to most chemical bo…
Which of the following are reasons intermolecular forces are so much weaker than
Which of the following are reasons intermolecular forces are so much weaker than bonding forces? 1 It takes much less energy to boil a sample of a substance than it does to break …
Which of the following are redox reactions? For redox reactions, determine which
Which of the following are redox reactions? For redox reactions, determine which element is oxidized and which is reduced, and identify the oxidizing agent and the reducing agent …
Which of the following are redox reactions? Se 2 O 3 2- + I 2 ? I - + Se 4 O 6 2
Which of the following are redox reactions? Se2O32- + I2 ? I- + Se4O62- TeO2 + H+ ? Te + H2O HCl + BaCO3 ? BaCl2 + HCO3- Question 2 options: Save Question 3 (0.26 points) Balance …
Which of the following are spontaneous processes? Iron rusts in moist air. The b
Which of the following are spontaneous processes? Iron rusts in moist air. The broken egg shells rise from the floor and reassemble themselves. Two bodies at thermal equilibrium e…
Which of the following are state functions? Select ALL that apply. The temperatu
Which of the following are state functions? Select ALL that apply. The temperature of an ice cube. The internal energy of a system. The distance from the front of the PHSC buildin…
Which of the following are techniques to promote particle growth? I. use a large
Which of the following are techniques to promote particle growth? I. use a large volume of solution so concentrationof analyte and precipitant are low. II. rapidly add the precipt…
Which of the following are techniques to promote particle growth? Use a large vo
Which of the following are techniques to promote particle growth? Use a large volume of solution so concentration of and precipitant are low. Rapidly add the precipitant to precip…
Which of the following are the advantages for using the Michelson Interferometer
Which of the following are the advantages for using the Michelson Interferometer and Fourier Transformation in an Infrared Spectrophotometer? Select ALL that apply A. Makes it che…
Which of the following are the best sources of data that can be used for reactor
Which of the following are the best sources of data that can be used for reactor design? Bench-scale experiments Rules of thumb Pilot-plant studies Simulations based only on first…
Which of the following are true ? 1. The glycerophospholipid biosynthetic pathwa
Which of the following are true ? 1. The glycerophospholipid biosynthetic pathway provides precusors for the synthesis of triacylglycerols. 2. Triacylglycerols are synthesized by …
Which of the following are true about the use of aluminum chloride in the Friede
Which of the following are true about the use of aluminum chloride in the Friedel-Crafts acylation reaction? Note that there may be more than one correct answer. Aluminum chloride…
Which of the following are true about the use of aluminum chloride in the Friede
Which of the following are true about the use of aluminum chloride in the Friedel-Crafts acylation reaction? Note that there is more than one correct answer. Aluminum chloride rem…
Which of the following are true about the use of aluminum chloride in the Friede
Which of the following are true about the use of aluminum chloride in the Friedel-Crafts acylation reaction? Note that there may be more than one correct answer. A)Aluminum chlori…
Which of the following are true for both proteins (amino acids) and carbohydrate
Which of the following are true for both proteins (amino acids) and carbohydrates (glucose)? (select all that apply) can be used immediately by cells can be converted to fatty aci…
Which of the following are true for the Crystal Field Model of anoctahedral comp
Which of the following are true for the Crystal Field Model of anoctahedral complex ion? Consider the ions to be first-seriestransition metals. a) Two of the 3d orbitals point dir…
Which of the following are true for the Crystal Field Model ofan octahedral comp
Which of the following are true for the Crystal Field Model ofan octahedral complex ion? Consider ions to be from first-rowtransition metals. a) The ligands cause all 3d orbitals …
Which of the following are true for the Crystal Field Model ofan octahedral comp
Which of the following are true for the Crystal Field Model ofan octahedral complex ion? Consider ions to be from first-rowtransition metals. a) The ligands cause a splitting of e…
Which of the following are true for the Crystal Field Model ofan octahedral comp
Which of the following are true for the Crystal Field Model ofan octahedral complex ion? Consider ions to be from first-rowtransition metals. a) The ligands cause a splitting of e…
Which of the following are true of proteoglycans? Core protein with attached sul
Which of the following are true of proteoglycans? Core protein with attached sulfated glycosaminoglycan's; Some are ganglion sides that contribute to blood type Components of the …
Which of the following are true of the enzyme glycogen phosphorylase? Select any
Which of the following are true of the enzyme glycogen phosphorylase? Select any/all answers that apply. its activity is dynamically regulated by phosphorylation/dephosphorylatio…
Which of the following are true regarding ribozymes? a. they are only found in p
Which of the following are true regarding ribozymes? a. they are only found in protozoans, such as tetrahymena. b. in vitro studies have shown that the catalytic step of peptide b…
Which of the following are true statements ? a) A positive value of G for a proc
Which of the following are true statements ? a) A positive value of G for a process means, that processis spontaneous and can perform a maxium quantity of work on thesurroundings …
Which of the following are true statements ? a) A positivevalue of G for a proce
Which of the following are true statements ? a) A positivevalue of G for a process means, that process is spontaneousand can perform a maxium quantity of work on the surroundings …
Which of the following are true statements ? a) At equilibrium G reaction = 1 b)
Which of the following are true statements ? a) At equilibrium Greaction = 1 b) Q < Keq when Greaction < 0 c) When Q > Keq addtional products are formed d) When Q = Keq t…
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