Chemistry concepts and calculations

Which of the following is true of secondary structure in protein folding? Pick A

Which of the following is true of secondary structure in protein folding? Pick ALL that apply. It involves hydrogen bonding. It involves the side chains. It involves hydrophobic i…

Which of the following is true of sphingolipids? sphingerbrosipidsine 96. 100. T

Which of the following is true of sphingolipids? sphingerbrosipidsine 96. 100. The inner (plasma) membrane of E. coli is about 75% lipid and 25% protein by weight. How many molecu…

Which of the following is true of strategies for engineering quality software? H

Which of the following is true of strategies for engineering quality software? High-quality software systems are tough to learn and use because they perform slowly. Software defec…

Which of the following is true of swell ? created by weather effects generated b

Which of the following is true of swell? created by weather effects generated by earthquakes swells are also classified as tsunamis move in multiple wave trains move as a single w…

Which of the following is true of the Arrhenius theory? A. Acids are defined as

Which of the following is true of the Arrhenius theory? A. Acids are defined as compounds that produce H+ ions in water solution. B. Bases are defined as compounds that accept H+ …

Which of the following is true regarding how weak acid-conjugate base buffers ne

Which of the following is true regarding how weak acid-conjugate base buffers neutralized acids and bases? The conjugate base neutralizes bases. The weak acid neutralizes acids. s…

Which of the following is true regarding the solubility of gases? Which of the f

Which of the following is true regarding the solubility of gases? Which of the following terms can be used to quantitatively describe the concentration of a solution? Suppose you …

Which of the following is true when comparing the hydrolysis of esters in acidic

Which of the following is true when comparing the hydrolysis of esters in acidic solution with the hydrolysis of esters in basic solution? A. both the inorganic and organic produc…

Which of the following is true: A. ) As an agency created under administrative l

Which of the following is true: A. ) As an agency created under administrative law, FDA can make changes to the Food Drug and Cosmetic Act through rule making. B.) The relevant re…

Which of the following is true: A. ) As an agency created under administrative l

Which of the following is true: A. ) As an agency created under administrative law, FDA can make changes to the Food Drug and Cosmetic Act through rule making. B.) The relevant re…

Which of the following is true: a. FDA assures that pregnant women are enrolled

Which of the following is true: a. FDA assures that pregnant women are enrolled in investigational drug trials before a product is used when there is substantial use in women b. F…

Which of the following is true? (a) Alpha emission follows first order kinetics

Which of the following is true? (a) Alpha emission follows first order kinetics and beta emission and positron emission both follow second order kinetics. (b) Alpha emission follo…

Which of the following is true? I has a higher boiling point, than II because of

Which of the following is true? I has a higher boiling point, than II because of stronger intermolecular interaction in I I has a higher boiling point, than II because of weaker i…

Which of the following is true? The earth absorbs shortwave radiation from the S

Which of the following is true? The earth absorbs shortwave radiation from the Sun and emits energy as shortwave radiation The Earth absorbs shortwave radiation from the Sun and e…

Which of the following is true? The probability density ______________ is indepe

Which of the following is true? The probability density ______________ is independent of direction from the nucleus foe 1s orbitals only. for all s orbitals is independent of dire…

Which of the following is true? The radiational transition S_1 rightarrow S_0 is

Which of the following is true? The radiational transition S_1 rightarrow S_0 is called fluorescence, and the radiational transition T_1 rightarrow S_0 is called phosphorescence. …

Which of the following is true? When the yield of chemical reaction is less than

Which of the following is true? When the yield of chemical reaction is less than 100%, this indicates one of the reactants is present in insufficient amount to react with the enti…

Which of the following is true? a) A galvanic cell that has a measured potential

Which of the following is true? a) A galvanic cell that has a measured potential that is positive, means that the reaction is spontaneous and has a negative Gibbs free energy chan…

Which of the following is true? a)When the neuron is in the resting state there

Which of the following is true? a)When the neuron is in the resting state there is no potential across the membrane. b)The concentration of Na+ is higher inside the nerve cell tha…

Which of the following is valid according to Archimedes\' Principle? Choose all

Which of the following is valid according to Archimedes' Principle? Choose all that apply. 1. A solid object that sinks in a liquid displaces a mass of the liquid equal to the mas…

Which of the following is written correctly? A. Fisher projections are typically

Which of the following is written correctly? A. Fisher projections are typically drawn with hydrogens on vertical lines and carbon chains on horizontal lines. B. In the case of a …

Which of the following is(are) NOT true for ionization interference? I Ionizatio

Which of the following is(are) NOT true for ionization interference? I Ionization interference can occur with alkali metals at relatively low temperature and for analyses for othe…

Which of the following is/ are characteristics of transitionmetals. I. Have vari

Which of the following is/ are characteristics of transitionmetals. I. Have variable oxidation states II. Tend to form complex ions and coordination compounds III. Their compounds…

Which of the following is/are classified as an acid-base reaction? 1. AgNO_3(aq)

Which of the following is/are classified as an acid-base reaction? 1. AgNO_3(aq) + HCl(aq) AgCl(s) + HNO_3(aq) 2. Mg(s) + O_2(g) 2MgO(s) 3. Zn(s) + 2Ag^+ (aq) 2Ag(s) + Zn^2+ (aq) …

Which of the following is/are correct postulates of Bohr\'s theory of the hydrog

Which of the following is/are correct postulates of Bohr's theory of the hydrogen atom? Provide written rationale. 1.The energy of an electron in an atom is quantized (i.e. only s…

Which of the following is/are equal once equilibrium is established? a. the conc

Which of the following is/are equal once equilibrium is established? a. the concentrations of reactant and products b. the rates of the forward and reverse reactions c. the time t…

Which of the following is/are example(s) of spontaneous processes/reactions? A w

Which of the following is/are example(s) of spontaneous processes/reactions? A waterfall flowing downhill. The endothermic reaction between ammonium thiocyanate and barium hydroxi…

Which of the following is/are example(s) of spontaneous processes/reactions? A w

Which of the following is/are example(s) of spontaneous processes/reactions? A waterfall flowing downhill. The endothermic reaction between ammonium thiocyanate and barium hydroxi…

Which of the following is/are not a form of potential energy? a. Chemical d. Ela

Which of the following is/are not a form of potential energy? a. Chemical d. Elastic b. Electrostatic e. All of them are forms of potential energy c. Mechanical 2. Which of the fo…

Which of the following is/are possible safety hazards encountered in the alcohol

Which of the following is/are possible safety hazards encountered in the alcohol dehydration experiment? (check all that apply) 1. conc. sulfuric and phosphoric acids are very cor…

Which of the following is/are possible safety hazards encountered in the alcohol

Which of the following is/are possible safety hazards encountered in the alcohol dehydration experiment? (check all that apply) 1. conc. sulfuric and phosphoric acids are very cor…

Which of the following is/are true concerning equilibrium constants? 1. When an

Which of the following is/are true concerning equilibrium constants? 1. When an equilibrium constant is very large, the equilibrium mixture contains more reactants than products. …

Which of the following is/are true for a mass oscillating on the spring: The max

Which of the following is/are true for a mass oscillating on the spring: The maximum magnitude of acceleration occurs when the mass passes through an equilibrium point The maximum…

Which of the following is/are true when your solution turns from red to blue? Th

Which of the following is/are true when your solution turns from red to blue? The EDTA has fully reacted with the calmagite. The number of moles of EDTA in solution is equivalent …

Which of the following it the correct IUPAC mat for the molecule shown below 6-m

Which of the following it the correct IUPAC mat for the molecule shown below 6-methylthioheptane-2-thiol 6-methylthio-2-mercaptoheptane 2-methylthioheptane-6-thiol 2-mercapto-6-me…

Which of the following kinetic energy diagram shows the effect of adding a catal

Which of the following kinetic energy diagram shows the effect of adding a catalyst to a reaction? For which of the following reaction is K_p equal to K_c 4 NH_3(g) + 3O_2(g) 2N_2…

Which of the following kinetic energy diagram shows the effect of adding a catal

Which of the following kinetic energy diagram shows the effect of adding a catalyst to a reaction? For which of the following reaction is K_p equal to K_c 4 NH_3(g) + 3O_2(g) 2N_2…

Which of the following lasers emits photons with the lowest energy? a. an Ar* la

Which of the following lasers emits photons with the lowest energy? a. an Ar* laser with lambda = 514.5 nm b. a He-Ne laser with lambda = 633 nm c. a Kr^+ laser with lambda = 647 …

Which of the following lasers emits photons with the lowest energy? a. an Ar^+ l

Which of the following lasers emits photons with the lowest energy? a. an Ar^+ laser with lambda = 514.5 nm b. a He-Ne laser with lambda = 633 nm c. a Kr^+ laser with lambda = 647…

Which of the following letters represents DeltaH for the forward reaction in the

Which of the following letters represents DeltaH for the forward reaction in the following energy diagram? How many transition states and intermediates would the reaction profile …

Which of the following linear chain alcohols is likely to have the highest stand

Which of the following linear chain alcohols is likely to have the highest standard entropy in the liquid state? Why? CH_3OH CH_3CH_2OH CH_3CH_2CH_2OH CH_3CH_2CH_2CH_2OH CH_3CH_2C…

Which of the following lines of output will most likely be displayed if you issu

Which of the following lines of output will most likely be displayed if you issue the show running-config command on Router A?  (Select the best answer.) A) interface Tunnel0 ip a…

Which of the following liquids will have the lowest freezing point? A) purr H_2O

Which of the following liquids will have the lowest freezing point? A) purr H_2O B) aqueous glucose (0.60 m) C) aqueous KF (0.50 m) D) aqueous Fel_3 (0.24 m) E) aqueous sucrose (0…

Which of the following lists the igneous events of Painted Canyon in their corre

Which of the following lists the igneous events of Painted Canyon in their correct order, from oldest at the bottom to youngest at the top? intrusion of granite, formation of pegm…

Which of the following may affect the value of the rate constant? Catalysts Conc

Which of the following may affect the value of the rate constant? Catalysts Concentration of reactants Temperature Answers B and C Answers A. B, and C Express the equilibrium cons…

Which of the following may be considered as functional groups? Choose all that a

Which of the following may be considered as functional groups? Choose all that apply. What is the structural unit that characterizes both ketones and aldehydes? Which of the follo…

Which of the following may influence the value of a rock or mineral or the hazar

Which of the following may influence the value of a rock or mineral or the hazard posed by it (circle best answer). crystal structure; chemical composition; hardness; optical prop…

Which of the following measured volumes has the leave uncertainty? 10 mL 10.0 mL

Which of the following measured volumes has the leave uncertainty? 10 mL 10.0 mL 10.00 mL 10.000 mL All values have the same degree of uncertainty. A solution contains the label 0…

Which of the following mechanisms can account for your observed results. For eac

Which of the following mechanisms can account for your observed results. For each mechanism, justify why it can or cannot be a reasonable mechanism. Note that more than one possib…

Which of the following mechanisms of gene regulation is epigenetic? Which of the

Which of the following mechanisms of gene regulation is epigenetic? Which of the following mechanisms of gene regulation is epigenetic? A hormone binds to a transcription factor, …