Chemistry concepts and calculations

Which of the following ions is aromatic? 1 2 3 4 Which one of the following comp

Which of the following ions is aromatic? 1 2 3 4 Which one of the following compounds will have the highest boiling point? CH_3CH_2CH_2CH_2CH_3 CH_3CH_2 CH_2CH_2OH CH_3CH_2CH_2OCH…

Which of the following ions is most likely to from an insoluble compound when co

Which of the following ions is most likely to from an insoluble compound when combined with sulfate ion? Sr^2+ I^- K^+ Na^+ S^2- Which of the following compound is insoluble in wa…

Which of the following is (are) active enzyme(s)? a) pepsinogen b) proelastase c

Which of the following is (are) active enzyme(s)? a) pepsinogen b) proelastase c) trypsin d) all are active enzymes 21000 molecules were acted on by a single molecule of an enzyme…

Which of the following is (are) active enzyme(s)? a) pepsinogen b) proelastase c

Which of the following is (are) active enzyme(s)? a) pepsinogen b) proelastase c) trypsin d) all are active enzymes 21000 molecules were acted on by a single molecule of an enzyme…

Which of the following is (are) not considered parameters for the design of a bi

Which of the following is (are) not considered parameters for the design of a bio-purification system: a) sterile and pyrogen free b) sanitary equipment design c) reverse osmosis …

Which of the following is (are) possible Newman projections for 2-methylpentane?

Which of the following is (are) possible Newman projections for 2-methylpentane? Draw the staggered and eclipsed conformations that result from rotation around the C-C bond irn CH…

Which of the following is 3-Hexyne HC identicalto C-CH_2-CH_2-CH_3 CH_3-C identi

Which of the following is 3-Hexyne HC identicalto C-CH_2-CH_2-CH_3 CH_3-C identicalto C-CH_2-CH_2-CH_3 CH_3-C identicalto C-CH_2-CH_3 CH_3-CH_2-C identicalto C-CH_2-CH_2 Which of …

Which of the following is FALSE? A. The Cs-F bond would be more ionic than the G

Which of the following is FALSE? A. The Cs-F bond would be more ionic than the Ge-Clbond. B. The Br-F bond is polar covalent while the F-F bond ispurely covalent. C. Oxygen is mor…

Which of the following is I so electronic with krypton? K^+ Sr^2+ cl^- S^2- Al^3

Which of the following is I so electronic with krypton? K^+ Sr^2+ cl^- S^2- Al^3+ What is the name of this ion:N^3- nitrogen nitride nitrate nitrite none of the above What is the …

Which of the following is INCORRECT for water? A. Freezing point temperature dec

Which of the following is INCORRECT for water? A. Freezing point temperature decreases with increasing pressure. B. Solid is less dense than liquid C. Water has an unusually high …

Which of the following is INCORRECTLY classified as ionic versus covalent? H_2oi

Which of the following is INCORRECTLY classified as ionic versus covalent? H_2ois an ionic compound NO_2is a an aient compound CO_2is a an aient compound Ca_Ois an ionic compound …

Which of the following is N0T multicasting routing protocol? IGMP MOSPF PIM MBGP

Which of the following is N0T multicasting routing protocol? IGMP MOSPF PIM MBGP In considering the bottom UP approach to building a LAN where each department procures its own equ…

Which of the following is NOT TRUE of an E1 reaction? Select one: A. It is a two

Which of the following is NOT TRUE of an E1 reaction? Select one: A. It is a two-step process, with the first step being the rate-determining step. B. Mechanistically, the reactio…

Which of the following is NOT a colligative property ? Surface Tension Freezing

Which of the following is NOT a colligative property ? Surface Tension Freezing point depression Osmotic pressure Boiling point elevation The crystal structure at right is amorpho…

Which of the following is NOT a conjugate acid-base pair? A) NH 4 + /NH 3 B) H 3

Which of the following is NOT a conjugate acid-base pair? A) NH4+/NH3 B) H3O1+ /OH1- C) H2SO3/HSO31- D) C2H3O21- /HC2H3O2 E) All of the above are conjugate acid-base pairs. Determ…

Which of the following is NOT a difference between DNA and RNA synthesis? a. the

Which of the following is NOT a difference between DNA and RNA synthesis? a. the nature of the nucleotide used b. the direction of synthesis c. the presence of discrete terminatio…

Which of the following is NOT a natural electrical phenomenon? On a dry day you

Which of the following is NOT a natural electrical phenomenon? On a dry day you get an electrical shock when you open your car. A plastic ruler rubbed with wool picks up small pie…

Which of the following is NOT a solution? a) brass: an alloy b) air: contains ga

Which of the following is NOT a solution? a) brass: an alloy b) air: contains gases whose percentages vary c) sucrose: a compound containing carbon, hydrogen and oxygen d) dental …

Which of the following is NOT a valid assumption regarding the calculation of ad

Which of the following is NOT a valid assumption regarding the calculation of adiabatic reaction (flame) temperature? Question options: A) You will probably not be able to solve t…

Which of the following is NOT an advantage of a potentiometric titration over a

Which of the following is NOT an advantage of a potentiometric titration over a direct potentiometric measurement? Potentiometric titration yields equivalence point data that are …

Which of the following is NOT an example of an oxidation-reduction reaction? Whi

Which of the following is NOT an example of an oxidation-reduction reaction? Which of the following statements concerning acids and bases is TRUE? Which type of radiation emitted …

Which of the following is NOT being considered as a way to sequester CO2 produce

Which of the following is NOT being considered as a way to sequester CO2 produced by burning fossil fuels? A. React CO2 with Ca & Mg oxides to form crystals, speeding this pro…

Which of the following is NOT correct about fluorescence spectroscopy? Fluoresce

Which of the following is NOT correct about fluorescence spectroscopy? Fluorescence usually has a shorter lifetime than phosphorescence. In a fluorescence spectroscopy the emissio…

Which of the following is NOT one of the characteristics of a building wiring sc

Which of the following is NOT one of the characteristics of a building wiring scheme using a structured cabling system? the scheme refers to the wiring within a commercial buildin…

Which of the following is NOT one of the characteristics of a bulking wiring sch

Which of the following is NOT one of the characteristics of a bulking wiring scheme using a structured cabling system? the scheme refers to the wiring within a commercial building…

Which of the following is NOT one of the classes of sedimentary rocks? Select on

Which of the following is NOT one of the classes of sedimentary rocks? Select one: a. detrital b. biochemical c. intrusive d. chemical Question 2: As sediment is transported downs…

Which of the following is NOT one of the typical characteristics of back-end net

Which of the following is NOT one of the typical characteristics of back-end networks high data rate high-speed interface distributed access extended distance Problems with using …

Which of the following is NOT part of Dalton\'s Atomic Theory? Each element is c

Which of the following is NOT part of Dalton's Atomic Theory? Each element is composed of tiny indestructible particles called atoms. Atoms combine in simple, whole-number ratios …

Which of the following is NOT true according to classical macroeconomics theory?

Which of the following is NOT true according to classical macroeconomics theory? Use letters in alphabetical order to select options A Output is determined by the supplies of capi…

Which of the following is NOT true regarding geologic maps and cross-sections dr

Which of the following is NOT true regarding geologic maps and cross-sections drawn on a topographic base maps versus those drawn on planimetric base maps? In areas where strata a…

Which of the following is NOT true regarding geologic maps and cross-sections dr

Which of the following is NOT true regarding geologic maps and cross-sections drawn on a topographic base maps versus those drawn on planimetric base maps? In areas where strata a…

Which of the following is NOT true regarding the value for pKa based on a titrat

Which of the following is NOT true regarding the value for pKa based on a titration curve using a pH electrode to determine the equivalence point? A.pKa = pH at 1/2 the volume of …

Which of the following is NOT used to determine whether a volcanic eruption is e

Which of the following is NOT used to determine whether a volcanic eruption is expected? Increase in earthquake activity Changes in groundwater temperature Decrease in atmospheric…

Which of the following is TRUE about protein conformation. A. Some proteins are

Which of the following is TRUE about protein conformation. A. Some proteins are globular, some are fibrous. B. In globular proteins, hydrophobic parts of amino acid residues tend …

Which of the following is TRUE of a successful budgeting process? Top management

Which of the following is TRUE of a successful budgeting process? Top management shows little interest in the results of the budget process. Only accounting personnel should be in…

Which of the following is TRUE of redox reactions? The element that undergoes an

Which of the following is TRUE of redox reactions? The element that undergoes an increase in oxidation number is the oxidizing agent. The element that is oxidized gains electrons.…

Which of the following is TRUE of redox reactions? The element that undergoes an

Which of the following is TRUE of redox reactions? The element that undergoes an increase in oxidation number is the oxidizing The element that is oxidized gains electrons. The re…

Which of the following is TRUE on the cause of beriberi? A. Milled rice is quite

Which of the following is TRUE on the cause of beriberi? A. Milled rice is quite low in thiamine, which is required to make a key coenzyme needed by the pyruvate dehydrogenase com…

Which of the following is TRUE regarding constitutional isomers? C) Constitution

Which of the following is TRUE regarding constitutional isomers? C) Constitutional isomers have the same chemical structure but different formulas, physical, and chemical properti…

Which of the following is TRUE regarding the Shine-Dalgarno sequence? It is part

Which of the following is TRUE regarding the Shine-Dalgarno sequence? It is part of the operator sequence used to control translation It functions as a promoter sequence which rec…

Which of the following is TRUE? a. An effective buffer has a [base]/[acid] ratio

Which of the following is TRUE? a. An effective buffer has a [base]/[acid] ratio in the range of 10-100 b. A buffer is most resistant to pH change when [acid] = [conjugate base] c…

Which of the following is a BAD leaving group? A. H_2 O B. I^- C. Br^- D. Cl^- E

Which of the following is a BAD leaving group? A. H_2 O B. I^- C. Br^- D. Cl^- E.^- OH In polar protic solvents, nucleophile strength trends are ___ base strength trends. This is …

Which of the following is a FALSE statement about stereoisomers and chirality ?

Which of the following is a FALSE statement about stereoisomers and chirality? Which of the following is a FALSE statement about stereoisomers and chirality? A Two enantiomeric is…

Which of the following is a FALSE statement about the 2-step process of alkene h

Which of the following is a FALSE statement about the 2-step process of alkene hydroboration-oxidation to form alcohols and the corresponding reaction mechanism? A) The net result…

Which of the following is a Lewis acid? nh_4^+ nh_3 HCI BF_3 How will the pH of

Which of the following is a Lewis acid? nh_4^+ nh_3 HCI BF_3 How will the pH of a 0.500 M HOC_6H_5 solution change if 0.50 mol of NaOC_6H_5 to 3.00 L the solution? The pH of the s…

Which of the following is a NOT a property or ethers? A) they dissolve a wide ra

Which of the following is a NOT a property or ethers? A) they dissolve a wide range of non polar substances B) they have relatively high boiling points for their molecular weights…

Which of the following is a balanced, net ionic,neutralization reaction written

Which of the following is a balanced, net ionic,neutralization reaction written correctly? A. KOH(aq) +HC2H3O2(aq) -->H2O(l) +KC2H3O2(aq) B. OH-(aq) + H+(aq) --> H2O(l) C. B…

Which of the following is a bridged bicyclic alkane? Which of the statements bel

Which of the following is a bridged bicyclic alkane? Which of the statements below correctly describes the chair conformations of traits-1,4- dimethyleyclohexane? When 2,2-dimethy…

Which of the following is a buffer system? NaCl and NaNO_3 H_2O and HCl HCl and

Which of the following is a buffer system? NaCl and NaNO_3 H_2O and HCl HCl and NaOH H_2CO_3 and HCO_3^- E NaCl and NaOH When a person hyperventilates they breathe very quickly, e…

Which of the following is a characteristic of integral membrane proteins? Questi

Which of the following is a characteristic of integral membrane proteins? Question 6 options: A) flip-flop occurs but rather slowly B) do not have lateral diffusion or flip-flop C…