Chemistry concepts and calculations

Which is not a product of the above E2 reaction? What is the major product of th

Which is not a product of the above E2 reaction? What is the major product of the E2 reaction shown above? Which the following ions is an intermediate in the SN1 solvolysis reacti…

Which is not an important characteristic of elementary processes? A) Certain int

Which is not an important characteristic of elementary processes? A) Certain intermediates are produced in one elementary process and consumed in another. B) Concentration exponen…

Which is not true for standard electrode potentials? Please tell me which is the

Which is not true for standard electrode potentials? Please tell me which is the right answer and why ? a. The potential for the standard hydrogen electrode is chosen to be +1.00 …

Which is not water soluble? A) acetic acid, CH3CO2H B) glycerol, C3H5(OH)3 C) ac

Which is not water soluble? A) acetic acid, CH3CO2H B) glycerol, C3H5(OH)3 C) acetylene, C2H2 D) ammonia, NH3 How does temperature affect the rate of dissolving of a solid solute …

Which is sometimes also written as: Part A Calculate the standard potential for

Which is sometimes also written as: Part A Calculate the standard potential for the following galvanic cell: Express your answer to three significant figures and include the appro…

Which is the best chemical (CaCl_2, or NH_4CI) to be used in Hot-hands? Explain.

Which is the best chemical (CaCl_2, or NH_4CI) to be used in Hot-hands? Explain. Would either of these chemicals be useful as a sports cold pack? Explain. If the sun were used as …

Which is the best description of hydrogen bonding? The temporary attraction betw

Which is the best description of hydrogen bonding? The temporary attraction between hydrogen atoms on different molecules resulting from shifts in electron density The association…

Which is the best description of hydrogen bonding? The temporary attraction betw

Which is the best description of hydrogen bonding? The temporary attraction between hydrogen atoms on different molecules resulting from shifts in electron density The association…

Which is the best indicator for the titration of HCI solution with NaOH solution

Which is the best indicator for the titration of HCI solution with NaOH solution? An employer is interviewing four applicants for job a laboratory technician and each now to prepa…

Which is the best molecular-level representation of an aqueous solution of the w

Which is the best molecular-level representation of an aqueous solution of the weak acid HF(aq)? For clarity, water molecules are omitted. When soap is added to water, the soap mo…

Which is the best statement? If one mole of oxygen-16 were formed from protons a

Which is the best statement? If one mole of oxygen-16 were formed from protons and neutrons, 0.1366 g of mass would be lost. What can best account for this loss? When fission occu…

Which is the best use of Le Châtelier\'s principle to explain why Ag 2 CO 3 diss

Which is the best use of Le Châtelier's principle to explain why Ag2CO3 dissolves when HNO3 is added? Ag2CO3 2Ag+ + CO32- A.)Nitric acid binds with silver ions. The loss of silver…

Which is the best way to prepare 3-methoxypentane via the Williamson method? ( p

Which is the best way to prepare 3-methoxypentane via the Williamson method? ( please explain why) A). CH3OH + CH3CH2CHOHCH2CH3 + H2SO4, 140'C B). CH3OH + (CH3)2 CHCH2CH2OH+ H2SO4…

Which is the better nucleophile in no solvent, in an aprotic solvent, and a prot

Which is the better nucleophile in no solvent, in an aprotic solvent, and a protic solvent? Cl- or Br- I was under the impression that Cl- was the better nucleophile because it is…

Which is the correct answer? What is the product of the reaction shown? 3-Hydrox

Which is the correct answer? What is the product of the reaction shown? 3-Hydroxy-2,5-dimethylhexanal 4-Hydroxy-2,5-dimethylhexanal 3-Hydroxy-2,2,4-trimethylpentanal 4-Hydroxy-2,2…

Which is the correct equilibrium constant expression FeO(s) + H_2(g) Fe(s) + H_2

Which is the correct equilibrium constant expression FeO(s) + H_2(g) Fe(s) + H_2O(g) a) K_c = [Fe][H_2O]/[e_2O_3] b) K_c = [H_2O]/[H_2] c) K_c = [Fe_2O_3][H_2]/[Fe][H_2O] d) K_c =…

Which is the correct expression for Q for the following reaction? H 2 SO 4 (g) +

Which is the correct expression for Q for the following reaction? H2SO4(g) + OH-(aq) <=> H2O(l) + SO42-(aq)   [NOT BALANCED!] A.           [H2O]2[SO42-] Q = _______________ …

Which is the correct molecular geometry (shape) of the following, respectively:

Which is the correct molecular geometry (shape) of the following, respectively: ICl4^-1 ; BrF5 ; XeCl2F2 ; IOCl5 ; IF3 Answer choices: A) square planar, square planar, square pyra…

Which is the correct net ionic equation for the reaction of CaBr 2 (aq)+Na 2 SO

Which is the correct net ionic equation for the reaction of CaBr2(aq)+Na2SO4(aq). Choose a letter, enter only one letter. B) Br- (aq)+Na+(aq)-------->NaBr(s) C) 2 Br -(aq)+Na+ …

Which is the correct percent by mass of hydrogen in CHz0, r 40.00% 6.727% 50.00%

Which is the correct percent by mass of hydrogen in CHz0, r 40.00% 6.727% 50.00% None of these QUESTION 13 1. What is the volume (in liters) occupies by 0.33 mole of any gas at ST…

Which is the correct set of enthalpies of formation, in kJ/mol, for the given sp

Which is the correct set of enthalpies of formation, in kJ/mol, for the given species? Hint: iodine is a solid at room temperature. *** Give your reasoning             I2(s)      …

Which is the effect of adding C_2H_5OH to a container in which the reaction CH_3

Which is the effect of adding C_2H_5OH to a container in which the reaction CH_3COOH + C_2H_5OH irreversible CH_3COOC_2H_5 + H_2O has balanced equilibrium the reaction will shift …

Which is the formula for the coordination compound ammonium diamminetetracyano c

Which is the formula for the coordination compound ammonium diamminetetracyano chromate(III)? [NH_4(CNS)_4(NH_3)_2]CrO_4 [(NH_4)_2(CNS)_4(NH_3)_2]CrO_4 NH_4[Cr(CN)_4(NH_4)_2] NH_4…

Which is the formula of an alcohol? Which of the following would be most water s

Which is the formula of an alcohol? Which of the following would be most water soluble: an alcohol an alkane an alkyl halide an alkene What bonds are present in ethylene? Four sig…

Which is the half-reaction at the anode in a lead storage battery? Select one: A

Which is the half-reaction at the anode in a lead storage battery? Select one: A. Pb(s) + SO42–(aq) ? PbSO4(s) + 2e– B. Pb(s) ? Pb(s) + 2e– C. H2(g) ? 2H+(aq) + 2e– D. PbO2(s) + 4…

Which is the main function of the citric acid cycle in energy production? 1-The

Which is the main function of the citric acid cycle in energy production? 1-The oxidation reactions of the citric acid cycle provides oxygen for electron transport and ATP synthes…

Which is the molar solubility of BaF_2 in a 0.0750 M LiF solution. K_sp (BaF_2)

Which is the molar solubility of BaF_2 in a 0.0750 M LiF solution. K_sp (BaF_2) = 1.7 ties 10^-6 M^2, 0.0750 M 2.3 times 10^-5 M 1.2 times 10^-2 M 3.0 times 10^-4 M which of the f…

Which is the more stable form of cyclohexane-1, 3-dione? Why is the enolate of a

Which is the more stable form of cyclohexane-1, 3-dione? Why is the enolate of acetone less basic than the allyl anion derived from propene? a. Because there are more atoms in ace…

Which is the most accurate statement regarding toxins? toxins are substances tha

Which is the most accurate statement regarding toxins? toxins are substances that are harmful if ingested toxins are substances that are harmful if injected "toxin" is a pretty me…

Which is the most appropriate acid-base indicator to use in the titration of 0.1

Which is the most appropriate acid-base indicator to use in the titration of 0.100 molar acetic acid(aq) by 0.100 molar NaOH (aq)? This is the titration of a weak acid by a strong…

Which is the most complete and best description of a A system of two nuclei with

Which is the most complete and best description of a A system of two nuclei with a pair of electrons located exactly midway between both nuclei The attractive force between two at…

Which is the most likely mode of radioactive decay for the radioactive Euclid ca

Which is the most likely mode of radioactive decay for the radioactive Euclid carbon- 4? A) beta emission B) alpha emission C) emission D) electron capture E) emission Which of th…

Which is the most likely regulated step in the metabolic pathways? A. The first

Which is the most likely regulated step in the metabolic pathways? A. The first reaction in the pathway, regardless of whether it is reversible or irreversible. B. The first irrev…

Which is the most reactive carboxylic acid derivative? An Amide An Ester An Acid

Which is the most reactive carboxylic acid derivative? An Amide An Ester An Acid Chloride An Acid Anhydride Ketones can be synthesized from acid chlorides by: Reaction with one eq…

Which is the most satisfactory solvent for alumina,Al 2 O 3 , in the electrolyti

Which is the most satisfactory solvent for alumina,Al2O3, in the electrolytic process for thepreparation of aluminum? A. liquid water, H2O B. molten cryolite, Na3AlF6 C. molten ba…

Which is the percent ionization of a solution which is 0.222 M HNO2 (K a = 4.50

Which is the percent ionization of a solution which is 0.222 M HNO2 (Ka = 4.50 x 10-4) and 0.278 M KNO2? A. 0.02% B. 0.162% C. 1.55 % D. 3.45 % A. 2.06 B. 5.48 C. 8.52 D. 9.26 Whi…

Which is the proper name for the structure shown? 1. Which of the following is 4

Which is the proper name for the structure shown? 1. Which of the following is 4. NOT 2-bromo-5-nitrobenzoic acid? NO, A) 3-Methyl-5- B) 3-Methyl-l- c)) 3-Methyl-5- (1,4-dinitrobe…

Which is the proper name for the structure shown? 2-Chloro-5-aldehydotoluene 6-C

Which is the proper name for the structure shown? 2-Chloro-5-aldehydotoluene 6-Chloro-3-aldehydotoluene 2-Methyl-4-aldehydochlorodenzene 4-Chloro-3-methylbenzaldehyde 4-Methyl-5-c…

Which is the proper name for the structure shown? 2-Chloro-5-aldehydotoluene 6-C

Which is the proper name for the structure shown? 2-Chloro-5-aldehydotoluene 6-Chloro-3-aldehydotoluene 2-Methyl-4-aldehydochlorodenzene 4-Chloro-3-methylbenzaldehyde 4-Methyl-5-c…

Which is the strongest acid? SO42– H2SO3 H2SO4 HSO4– HSO3– 2 Ag( s ) + Sn 2+ ( a

Which is the strongest acid? SO42– H2SO3 H2SO4 HSO4– HSO3– 2 Ag(s) + Sn2+(aq) ? 2 Ag+(aq) + Sn(s) I am not sure the answer is +0.94 or -0.94 Arsenic, As, is a.an essential element…

Which is the strongest interaction for substances with similar mass? A. Ion-dipo

Which is the strongest interaction for substances with similar mass? A. Ion-dipole B. Hydrogen bonding C. Dipole-dipole D. London dispersion Which compound will exhibit hydrogen b…

Which is the value of the conditional constants, Ki of the Cd^2+.EDTA complex at

Which is the value of the conditional constants, Ki of the Cd^2+.EDTA complex at pH = 9. The Cd^+2 .EDTA complex has a formation constant 0.985 0.041 0.676 16.5 0.028 Find the pH …

Which is the value of the conditional formation constants, K_t of the Cd^2-EDTA

Which is the value of the conditional formation constants, K_t of the Cd^2-EDTA complex, at pH=9. The Cd^2-EDTA complex has a formation constant K_t = 16.5. 0.985 0.041 0.676 16.5…

Which is the value of the conditional formation constants, Ki of the Cd^2x-EDAT

Which is the value of the conditional formation constants, Ki of the Cd^2x-EDAT complex at pH-9. The Cd^2x-EDTA complex has a formation constant Ki=16.5 0.985 0.041 0.676 16.5 0.0…

Which is true about SDSs? Hazards identified in an SDS reflect only the current

Which is true about SDSs? Hazards identified in an SDS reflect only the current state of knowledge. Gathering information is a continuous process. Each manufacturer of each chemic…

Which is true about patients with sickle cell trait? A) they have 50% hemoglobin

Which is true about patients with sickle cell trait? A) they have 50% hemoglobin S and 196 sickled cells b) they have 50% hemoglobin S and 50% sickled cells c) They have 100% hemo…

Which is true about the mechanism by which epinephrine stimulates glycogen break

Which is true about the mechanism by which epinephrine stimulates glycogen breakdown? A. This mechanism is essentially the same as that for glucagon's stimulation of glycogen brea…

Which is true about the paintComponent method? (Check all that apply.) Question

Which is true about the paintComponent method? (Check all that apply.) Question 9 options: It has a single argument of type Graphics. It is called in response to events that force…

Which is untrue statement concerning Cholesterol decolorizes a solution of Br Ch

Which is untrue statement concerning Cholesterol decolorizes a solution of Br Cholesterol >s optically actrve Cholesterol can be oxidized by potassium dichromate in acidic solu…

Which is/are equal in the two containers shown below? (A) only I (B) only II (C)

Which is/are equal in the two containers shown below? (A) only I (B) only II (C) both I and II (D) neither I nor II Average kinetic energy Pressure When 50.0 grams of ice are plac…