Chemistry concepts and calculations

Which of the following is important concerning the preparation of a buffer? a) H

Which of the following is important concerning the preparation of a buffer? a) Having the same large concentrations of the weak acid and conjugate base. b) Using a weak acid and i…

Which of the following is incorrect about chemical indicators used in precipitat

Which of the following is incorrect about chemical indicators used in precipitation titration? a) In the titration of Cl- with Ag+ ion using the Fajans method, the color change oc…

Which of the following is incorrect concerning the 3 d , 4 d , and 5 d transitio

Which of the following is incorrect concerning the 3d, 4d, and 5d transition series? There is a significant increase in radius in going from the 3d to the 4d metals, but the 4d an…

Which of the following is incorrect regarding S N 1 substitution reactions? Alky

Which of the following is incorrect regarding SN1 substitution reactions? Alkyl halide reactivity depends on the nature of the alkyl group. SN1 reactions always involve free carbo…

Which of the following is incorrectly matched with the type of addition that occ

Which of the following is incorrectly matched with the type of addition that occurs during the given mechanism A. Halohydrin formation - syn and anti addition B. Hydroboration Oxi…

Which of the following is increased by high levels of aldosterone? Question 15 o

Which of the following is increased by high levels of aldosterone? Question 15 options: reabsorption of Na+ and Cl- in the kidney reabsorption of Na+ in the kidney and release of …

Which of the following is likely to occur in a human if the supply of oxygen is

Which of the following is likely to occur in a human if the supply of oxygen is lost? Mark all that apply. A. The Krebs Cycle will continue, since it has two strongly irreversible…

Which of the following is most likely to be the first slop in the general mechan

Which of the following is most likely to be the first slop in the general mechanism for electrophilie substitution reactions? Arrange the following compounds in order of decreasin…

Which of the following is most likely to creep at room temperature (20 °C) ? a)

Which of the following is most likely to creep at room temperature (20 °C) ? a) Polypropylene (PP atactic): Tg = - 20 °C b) Polystyrene (PS) : Tg= 95 °C c) Silicon carbide ( engin…

Which of the following is most likely to exhibit covalent bonding? CaCl_2 Cs_2O

Which of the following is most likely to exhibit covalent bonding? CaCl_2 Cs_2O CO_2 NaF NaCl The law of definite proportions states that ____________ the elements forming a given…

Which of the following is most likely to exhibit covalent bonding? a. CaCl_2 b.

Which of the following is most likely to exhibit covalent bonding? a. CaCl_2 b. Cs_2O c. CO_2 d. NaF e. NaCl The law of definite proportions states that _____. a. the elements for…

Which of the following is most reactive with HBr?: Explain why. A: CH_3OH B: CH_

Which of the following is most reactive with HBr?: Explain why. A: CH_3OH B: CH_3CH_zOH C: (CH_3)_2 CHOH D: (CH_3)_3 COH Which constitutional isomer of C_6H_14 gives only two mono…

Which of the following is most useful to study conjugation in organic compounds?

Which of the following is most useful to study conjugation in organic compounds? IR spectroscopy NMR spectroscopy Mass spectroscopy UV-V is spectroscopy Propose a structure for a …

Which of the following is not a biological function or lipids? A) They sphere en

Which of the following is not a biological function or lipids? A) They sphere energy. B) They chemical reactions. C) They interface animals from cold temperature. D) They form of …

Which of the following is not a characteristic of a mineral. Question 1 options:

Which of the following is not a characteristic of a mineral. Question 1 options: it can be naturally occuring or man-made it contains a specific chemcial composition Most minerals…

Which of the following is not a characteristic of an SN1 reaction? A) The rate i

Which of the following is not a characteristic of an SN1 reaction? A) The rate is proportional to the concentration of substrate. B) The reaction is favored in polar protic solven…

Which of the following is not a colligative property? osmotic pressure vapor pre

Which of the following is not a colligative property? osmotic pressure vapor pressure ra g boiling point elevation freezing point depression All of the above are colligative prope…

Which of the following is not a colligative property? osmotic pressure vapor pre

Which of the following is not a colligative property? osmotic pressure vapor pressure ra g boiling point elevation freezing point depression All of the above are colligative prope…

Which of the following is not a common solvent used for acquiring a \'H NMR spec

Which of the following is not a common solvent used for acquiring a 'H NMR spectrum? CDCl_3 CCl_4 CH_3 OH CH_3 OH D_2 O Which of the following is true about the number of signals …

Which of the following is not a component of crude oil? anthracite propane keros

Which of the following is not a component of crude oil? anthracite propane kerosene asphalt Which of the following statements is true (only one): Renewable energy resources now ma…

Which of the following is not a consideration in the placement of electrons in a

Which of the following is not a consideration in the placement of electrons in an atom? a. The energy requirements of a given arrangement of atoms b. hund’s rule c. pauli exclusio…

Which of the following is not a correct abbreviation of a base unit prefix? Sele

Which of the following is not a correct abbreviation of a base unit prefix? Select one: a. g b. M c. m d. p e. k How many significant figures in the number 1600.30? Select one: a.…

Which of the following is not a general characteristics ofamide ? a. High boilin

Which of the following is not a general characteristics ofamide ? a. High boiling points b. Intermolecular hydrogen bonds are present c. Solutions in water are basic d. Most are s…

Which of the following is not a good method for the synthesis of 1-chlorohexane:

Which of the following is not a good method for the synthesis of 1-chlorohexane: A. 1-hexanol + HCl B. 1-hexanol + TsCl and Et3N to make a 1-hexyl tosylate, followed by an SN2 rea…

Which of the following is not a greenhouse gas? CO N_2O e, CO_2 CH_4, Which of t

Which of the following is not a greenhouse gas? CO N_2O e, CO_2 CH_4, Which of the following has the highest emissions of carbon dioxide ? Commercial industry transportation utili…

Which of the following is not a physical property? a. Boiling point b. Density c

Which of the following is not a physical property? a. Boiling point b. Density c. Color d. Temperature e. Flammability The first step of the scientific method involves: a. forming…

Which of the following is not a possible product of the mixed Claisen condensati

Which of the following is not a possible product of the mixed Claisen condensation reaction of methyl acetate with methyl propionate in a basic solution of methanol? (16) Which of…

Which of the following is not a possible termination step in the free radical ch

Which of the following is not a possible termination step in the free radical chlorination of methane? CH_3 + Cl_2 rightarrow CH_3Cl + Cl CH_3 + CH_3 rightarrow CH_3CH_3 CH_3 + Cl…

Which of the following is not a postulate of collision theory? A. Reactant molec

Which of the following is not a postulate of collision theory? A. Reactant molecules must collide to react. B. Reactant molecules must collide with a certain minimum energy in ord…

Which of the following is not a postulate of collision theory? A. Reactant molec

Which of the following is not a postulate of collision theory? A. Reactant molecules must collide to react. B. Reactant molecules must collide with a certain minimum energy in ord…

Which of the following is not a postulate of the kinetic molecular theory? (4 po

Which of the following is not a postulate of the kinetic molecular theory? (4 points) A) Gas particles have most of their mass concentrated in the nucleus of the atom. B) The movi…

Which of the following is not a property of structs? structs reserve space in me

Which of the following is not a property of structs? structs reserve space in memory when they are declared. b)      structs are built using elements of other data types. c)      …

Which of the following is not a reason for adding a filler to a polymer formulat

Which of the following is not a reason for adding a filler to a polymer formulation? A. Reduced cost due to reduced resin content B. To improve wear resistance C. To increase the …

Which of the following is not a state function? A w B) H C) U D) P E) T Which of

Which of the following is not a state function? A w B) H C) U D) P E) T Which of the following is true for the reaction NH_3 (I)n NH_(3) at -33 degree C and 1 atm pressure? (The n…

Which of the following is not an advantage of Fourier transform spectroscopy? a)

Which of the following is not an advantage of Fourier transform spectroscopy? a) Fourier transform spectroscopy offers improved signal-to-noise ratio. b) Fourier transform spectro…

Which of the following is not an attractive force that acts between the individu

Which of the following is not an attractive force that acts between the individual molecules of CH3OH? Answer                              A. London dispersion forces             …

Which of the following is not associated with the folding of a protein into its

Which of the following is not associated with the folding of a protein into its native conformation? options: Molecular chaperones prevent folding intermediates from aggregating. …

Which of the following is not correct concerning triglycerides (triacylglycerols

Which of the following is not correct concerning triglycerides (triacylglycerols)? a. They serve a major function as metabolic energy storage molecules. b. They are amphipathic su…

Which of the following is not correct? 1 mol of 03 has 1.81 times 10^24 O atoms

Which of the following is not correct? 1 mol of 03 has 1.81 times 10^24 O atoms 1 mol of CI_2 has 35.45 g CI 1 mol of NaCI has 6.022 times 10^23 Na^+ 1 mole of Ca_3 N_2 has 3 mole…

Which of the following is not explained by Dalton\'s atomic theory? conservation

Which of the following is not explained by Dalton's atomic theory? conservation of mass during a chemical reaction the existence of more than one isotope of an element the law of …

Which of the following is not found at the cytosolic leaflet of plasma membrane?

Which of the following is not found at the cytosolic leaflet of plasma membrane? A. Phospholipids B. Sphingolipids C. Glycolipids D. Cholesterol E. Glycerophospholipids Which of t…

Which of the following is not found at the cytosolic leaflet of plasma membrane?

Which of the following is not found at the cytosolic leaflet of plasma membrane? A. Phospholipids B. Sphingolipids C. Glycolipids D. Cholesterol E. Glycerophospholipids Which of t…

Which of the following is not incorrect about a chaperone. A protein catalyze hy

Which of the following is not incorrect about a chaperone. A protein catalyze hydrolysis of chaperonin A protein that catalyze the folding process of a specific protein A protein …

Which of the following is not true about mutations? a. They can occur spontaneou

Which of the following is not true about mutations? a. They can occur spontaneously because of exposure to a mutagen b. The likelihood of a mutation occurring is increased by the …

Which of the following is not true for an exothermic reaction? A Heat flows from

Which of the following is not true for an exothermic reaction? A Heat flows from the reaction system to the surroundings. B. The temperature of the surroundings rise. C The enthal…

Which of the following is not true for an exothermic reaction? A Heat flows from

Which of the following is not true for an exothermic reaction? A Heat flows from the reaction system to the surroundings. B. The temperature of the surroundings rise. C The enthal…

Which of the following is not true of covalent bonds? they are never polar there

Which of the following is not true of covalent bonds? they are never polar there is electron sharing they are between two nonmetals they are strong which of the following bonds is…

Which of the following is not true regarding the point at which an Exception is

Which of the following is not true regarding the point at which an Exception is thrown? Question 3 options: An exception can be declared and created at a different place in the pr…

Which of the following is not true: A buffer is a solution that resists changes

Which of the following is not true: A buffer is a solution that resists changes in pH by neutralizing small amounts of acids or bases buffered solutions are composed of a strong a…

Which of the following is not true: If the K_eq for a particular reaction is les

Which of the following is not true: If the K_eq for a particular reaction is less than 1, the products are favored over the reactants. The K_eq is defined as the concentrations of…