Chemistry concepts and calculations

Which of the following are true statements ? a) For a reactionwhere K c >> 1, th

Which of the following are true statements ? a) For a reactionwhere Kc >> 1, the initial concentrationof reactant is 0.125 M. When equilibrium has been achieved, this concen…

Which of the following are true statements ? a) For a reactionwhere K c >> 1, th

Which of the following are true statements ? a) For a reactionwhere Kc >> 1, the initial concentrationof reactant is 0.125 M. When equilibruim has been achieved, this concen…

Which of the following are true statements ? a) In colloids relatively large par

Which of the following are true statements ? a) In colloids relatively large particles are distributedthroughout a solvent-like medium. b) Colloids are homogeneous. c) Colloid par…

Which of the following are true statements ? a) In colloids relatively large par

Which of the following are true statements ? a) In colloids relatively large particles are distributedthroughout a solvent-like medium. b) Colloids are homogeneous. c) Colloid par…

Which of the following are true statements ? a) Surfactants have both a hydropho

Which of the following are true statements ? a) Surfactants have both a hydrophobic part and a hydrophillicpart. b) Long carbons chains of a surfactant are hydrophillic. c) The po…

Which of the following are true statements ? a) The biological effects of radiat

Which of the following are true statements ?   a)   The biological effects of radiation per rad or gray differ with the kind of radiation that is absorbed.   b)   When calculating…

Which of the following are true statements ? a) The rate law of anelementary rea

Which of the following are true statements ? a) The rate law of anelementary reaction can be determined without doing anyexperiments. b) Tertiary reactions are the most common typ…

Which of the following are true statements ? a) Thebiological effects of radiati

Which of the following are true statements ? a) Thebiological effects of radiation per rad or gray differ with thekind of radiation that is absorbed. b) Whencalculating the effect…

Which of the following are true statements about equilibrium systems? 1) For the

Which of the following are true statements about equilibrium systems? 1) For the following reaction at equilibrium: CaCO3(s) CaO(s) + CO2(g) adding more CaCO3 will shift the equil…

Which of the following are true statements about equilibrium systems? 1) For the

Which of the following are true statements about equilibrium systems? 1) For the following reaction at equilibrium:                        2 H2(g) + O2(g) ? 2 H2O(g)              …

Which of the following are true statements about equilibrium systems? 1. For the

Which of the following are true statements about equilibrium systems? 1. For the following reaction at equilibrium:                        CaCO3(s) CaO(s) + CO2(g)                …

Which of the following are true statements about equilibrium systems? 1.For the

Which of the following are true statements about equilibrium systems? 1.For the following reaction at equilibrium: CaCO3(s) CaO(s) + CO2(g) adding more CaCO3 will shift the equili…

Which of the following are true statements about equilibrium systems? For the fo

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: 1. CaCO3(s) CaO(s) + CO2(g) adding more CaCO3 will shift the equil…

Which of the following are true statements about equilibrium systems? For the fo

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: H2(g) + F2(g) 2HF(g) removing H2 will have no effect on the amount…

Which of the following are true statements about equilibrium systems? For the fo

Which of the following are true statements about equilibrium systems? For the following reaction at equilibrium: H2(g) + F2(g) ? 2HF(g) removing H2 will increase the amount of F2 …

Which of the following are true statements about equilibrium systems? Options: T

Which of the following are true statements about equilibrium systems? Options: True or False a) For the following reaction at equilibrium: 2 H2(g) + O2(g) ? 2 H2O(g) the equilibri…

Which of the following are true statements about equilibrium systems? True False

Which of the following are true statements about equilibrium systems? True False  For the following reaction at equilibrium:                        CaCO3(s) CaO(s) + CO2(g)       …

Which of the following are true statements about equilibrium systems? True/False

Which of the following are true statements about equilibrium systems? True/False For the following reaction at equilibrium:                        2 H2(g) + O2(g) 2 H2O(g)        …

Which of the following are true statements about heat capacity? 1 A large heat c

Which of the following are true statements about heat capacity? 1 A large heat capacity means the materialexperiences a large change in temperature with only a little amountof add…

Which of the following are true statements? 1) Phenylalanine is synthesized in t

Which of the following are true statements? 1) Phenylalanine is synthesized in the body by the transamination of a-ketoglutarate. 2) The carbon sources for nonessential amino acid…

Which of the following are true statements? a) A metal would be a better heat co

Which of the following are true statements? a) A metal would be a better heat conductor than wood. b) Molarheat capacities of metals are very similar. c) Heat capacities ofgases a…

Which of the following are true statements? there can bemore than onea) The rate

Which of the following are true statements? there can bemore than onea) The rate law of an elementary reaction can be determined withoutdoing any experiments.b) Tertiary reactions…

Which of the following are true? [check all that apply] Ternary salts are compou

Which of the following are true? [check all that apply] Ternary salts are compounds that result from replacing the hydrogen in a ternary acid with metal ion or ammonium ion. Terna…

Which of the following are true? a) Atropine is the most effective treatment aft

Which of the following are true? a)Atropine is the most effective treatment after exposure to sulfur mustards. b)Cyanide is only a man-made chemical and does not occur naturally. …

Which of the following are types of post translational modifications a newly syn

Which of the following are types of post translational modifications a newly synthesized protein may undergo? Select all the choices that apply. undian of selod ainhationl modicat…

Which of the following are unstable with respect to their constituent elements a

Which of the following are unstable with respect to their constituent elements at 25°C? Species -f kJ/mollarf kJ/mols",l(K-mol) C8H18 0) C2H2 ()+227 CH3OH1-239 -250 +329 201 +127 …

Which of the following are valid transitions that produce lines inthe emission s

Which of the following are valid transitions that produce lines inthe emission spectrum of Zn [Ar]4s^1 3d^10 6s^1 ---> [Ar]4s^2 3d^10 [Ar]4s^2 3d^10--->[Ar] 3d^10 [Ar]4s^2 3…

Which of the following assumptions are made in Michaelis Menten kinetics? A. The

Which of the following assumptions are made in Michaelis Menten kinetics? A. The concentration of the enzyme is negligible compared to the concentration of the substate. B. The su…

Which of the following atomic particles (shown in the figure below) determines w

Which of the following atomic particles (shown in the figure below) determines what element an atom is? Electron Proton Neutron Atoms of the same element can have different masses…

Which of the following atomic transitions are allowed or forbidden? 2s - 1s 5d -

Which of the following atomic transitions are allowed or forbidden? 2s - 1s 5d - 4s 4p - 3s 4s - 3p 4p - 3p LON-CAPA Allowed Transition | | + https loncapal.fsu.edu/enc/68/39f80e2…

Which of the following atoms cannot exceed the octet rule in a molecule? a. CI b

Which of the following atoms cannot exceed the octet rule in a molecule? a. CI b. O c. P d. S e. All of them can exceed octet Thionyl chloride is used as an oxidizing and chlorina…

Which of the following bases are strong enough to deprotonate CH3CH2CH2CCH so th

Which of the following bases are strong enough to deprotonate CH3CH2CH2CCH so that equilibrium favors the products: (a)H2O (b) NaOH (c) NaNH2 (d) NH3 (e) NaH (f) CH3Li ? The answe…

Which of the following bases is not commonly found in household products or anta

Which of the following bases is not commonly found in household products or antacids? Answer                              A. magnesium hydroxide, Mg(OH)2                 B. methyl…

Which of the following bases works best to maximize the E2 product in the reacti

Which of the following bases works best to maximize the E2 product in the reaction shown below? (CH_3)_2CHCH_2CH_2CH_2CH_2Br _ base rightarrow (CH_3)_2CHCH_2CH=CH_2 A) KOCH_2CH_3 …

Which of the following basic properties of a linear polymer structure is primari

Which of the following basic properties of a linear polymer structure is primarily responsible for the fact that individual polymer molecules are capable of coiling, tangling, kin…

Which of the following below explain why the alcohol is used in excess in this r

Which of the following below explain why the alcohol is used in excess in this reaction. Note that there may be more than one answer. Excess alcohol completely neutralizes the sul…

Which of the following best describes a chemical reaction in a state of equilibr

Which of the following best describes a chemical reaction in a state of equilibrium? Both the forward and the reverse reactions do not occur. The rates of the forward and reverse …

Which of the following best describes how the electron-pair geometry of a molecu

Which of the following best describes how the electron-pair geometry of a molecule is determined? First, a Lewis dot structure is created. Second, the steric number of the central…

Which of the following best describes how the electron-pair geometry of a molecu

Which of the following best describes how the electron-pair geometry of a molecule is determined? First, a Lewis dot structure is created. Second, the electron pairs are arranged …

Which of the following best describes the components of glycerophospholipids? Qu

Which of the following best describes the components of glycerophospholipids? Question 11 options: glycerol, one fatty acid, two phosphate groups, and an alcohol glycerol, two fat…

Which of the following best describes the difference between flame emission and

Which of the following best describes the difference between flame emission and atomic absorption spectroscopies? a. Emission is dependent on the fraction of atoms in their excite…

Which of the following best describes the function of NAD + and FAD in catabolic

Which of the following best describes the function of NAD+ and FAD in catabolic pathways? competitive inhibitors of the enzymes present in each pathway oxidizing agents that accep…

Which of the following best describes the function of a control element? segment

Which of the following best describes the function of a control element? segments of DNA upstream of a gene that upon binding with transcription factors, initiate transcription a …

Which of the following best describes the function of a control element? segment

Which of the following best describes the function of a control element? segments of DNA upstream of a gene that upon binding with transcription factors, initiate transcription a …

Which of the following best describes the order of decreasing acid strength for

Which of the following best describes the order of decreasing acid strength for the three carboxylic acids? A) CH_3COOH > CHCbCOOH > CH_2CICOOH B) CHCl_2COOH > CH_2CICOOH…

Which of the following best describes the term molar heat of fusion? The heat re

Which of the following best describes the term molar heat of fusion? The heat required to convert 1 mole of a liquid substance at its boiling point to the vapor state The heat req…

Which of the following best describes the theory behind performing an extraction

Which of the following best describes the theory behind performing an extraction? O When partitioned between an organic and aqueous layer, the desired product will always be more …

Which of the following best describes the valence-electron configuration of the

Which of the following best describes the valence-electron configuration of the group 4A elements? ns2np1 Which of the following best describes the valence-electron configuration …

Which of the following best describes the values of the rate constant, k , and t

Which of the following best describes the values of the rate constant, k, and the equilibrium constant, Kc, when the temperature of an exothermic reaction is increased? The value …

Which of the following best describes thevalence-electron configuration of the g

Which of the following best describes thevalence-electron configuration of the group 3A elements? A)Group 5A Rank From highest to lowest oxidation number of phosphorus PH3 PCl5 H3…