Chemistry concepts and calculations
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Which of the following mellow corresponds to a substitution? propane rightarrow
Which of the following mellow corresponds to a substitution? propane rightarrow 1,2-dibromopropanc 1- rightarrow propene propene rightarrow propane 1-isodopropane rightarrow 1-bro…
Which of the following metal ions would have the possibility of both high spin a
Which of the following metal ions would have the possibility of both high spin and low spin configurations in an octahedral crystal field? A ligand any forming a coordinate bond t…
Which of the following metals is used as the matrix metal in nearly all WC cemen
Which of the following metals is used as the matrix metal in nearly all WC cemented carbides (cermets)? (a)aluminum, (b) chromium, (c) cobalt, (d) silver, (e) tungsten Match the n…
Which of the following metals is used as the matrix metal in nearly all WC cemen
Which of the following metals is used as the matrix metal in nearly all WC cemented carbides (cermets)? (a)aluminum, (b) chromium, (c) cobalt, (d) silver, (e) tungsten Match the n…
Which of the following methods could be used to prepare a buffer solution? (more
Which of the following methods could be used to prepare a buffer solution? (more than 1 answers) Question 6 options: Partially neutralize a weak acid solution by addition of a str…
Which of the following methods could you use to hydrolyze sucrose to invert suga
Which of the following methods could you use to hydrolyze sucrose to invert sugar nonenzymatically in your kitchen at home? Sucrose, a disaccharide, is often added as a sweetener,…
Which of the following methods would not be useful for testing a hypothesis? Ana
Which of the following methods would not be useful for testing a hypothesis? Analyzing the same data used to formulate the hypothesis Controlled experiments in a laboratory Furthe…
Which of the following mixtures are buffers at equilibrium? Select all that appl
Which of the following mixtures are buffers at equilibrium? Select all that apply (there are multiple correct answers) Select one or more: a. 10 mL 1.0 Macetic acid+0.01 mL 1.0 M …
Which of the following mixtures would result in a bufferedsolution when 1.0 L of
Which of the following mixtures would result in a bufferedsolution when 1.0 L of each of the two solutions are mixed andwhy? a) 0.2 M of HNO3 and 0.4 M NaNO3 b) 0.2 M HNO3 and 0.4…
Which of the following molecular oxygen ions would be expected tohave the larges
Which of the following molecular oxygen ions would be expected tohave the largest bond enthalpy? a. O2 (i.e.molecular oxygen) b. O2 + (i.e.molecular oxygen with a +1 charge) c. O2…
Which of the following molecules are chiral? A planar drawing of a substituted c
Which of the following molecules are chiral? A planar drawing of a substituted cyclohexane ring represents the average positions of the ring atoms in the rapid chair-chair interco…
Which of the following molecules can only act as an hydrogen loading acceptor Am
Which of the following molecules can only act as an hydrogen loading acceptor Ammonia; Ethanol Acetone Acetic acid water Mitochondria is considered to be evolved through endosymbi…
Which of the following molecules does not show any pure rotational absorption ba
Which of the following molecules does not show any pure rotational absorption bands? a. CO_2 b. CH-4 c. HCI d. F_2 e. CO 9) Which of the following statements are true regarding th…
Which of the following molecules does not show any pure rotational absorption ba
Which of the following molecules does not show any pure rotational absorption bands? a. C0_2 b. CH-4 1. HCI d. F2 e. CO 9) Which of the following statements are true regarding the…
Which of the following molecules have a non-zero dipole moment? 1, 3, and 5 1, 2
Which of the following molecules have a non-zero dipole moment? 1, 3, and 5 1, 2, 3, and 5 1 only 4 only 5 only Which of the following are correct? Covalent network solids have lo…
Which of the following molecules is a lipid? (Figure 1) . If the molecule is a l
Which of the following molecules is a lipid? (Figure 1) . If the molecule is a lipid, determine the kind of lipid. If it is a fatty acid or a triglyceride, classify it as saturate…
Which of the following molecules is a lipid? If the molecule is a lipid, determi
Which of the following molecules is a lipid? If the molecule is a lipid, determine the kind of lipid. If it is a fatty acid or a triglyceride, classify it as saturated or unsatura…
Which of the following molecules is best described as having a nearly tetrahedra
Which of the following molecules is best described as having a nearly tetrahedral distribution of electron density? A) BeCl2 B) OF2 C) SnCl2 D) none of these 34. In which of the f…
Which of the following molecules of psicose, a ketohexose, has the chiral carbon
Which of the following molecules of psicose, a ketohexose, has the chiral carbon furthest from the carbonyl group marked with a 1? Part B In the following Fischer projection, the …
Which of the following molecules of psicose, a ketohexose, has the chiral carbon
Which of the following molecules of psicose, a ketohexose, has the chiral carbon furthest from the carbonyl group marked with a 1? Part B In the following Fischer projection, the …
Which of the following molecules will have allowed pure rotational transitions a
Which of the following molecules will have allowed pure rotational transitions and at least one Q-branch in its vibration-rotation spectrum? Circle all that apply. H2O NO_2 CO_2 C…
Which of the following molecules would a flame ionization detector (FID) be sens
Which of the following molecules would a flame ionization detector (FID) be sensitive to after separation on a gas chromatography column? methylcyclopentane, carbon monoxide, nitr…
Which of the following molecules would have the most polar bonds (Ch 9.6 pg 396)
Which of the following molecules would have the most polar bonds (Ch 9.6 pg 396) and which would produce the largest ions when dissolved in water (pg. 359-360 figure 8.12-13)? Rbc…
Which of the following molecules would have the most polar bonds? A) AsH_3 B) BH
Which of the following molecules would have the most polar bonds? A) AsH_3 B) BH_3 C) NH_3 D) PCl_3 E) SO_3 What is the molecular geometry of an SF_4 molecule? A) tetrahedral B) s…
Which of the following monosaccharides is not an aldose? A) crythrose B) fructos
Which of the following monosaccharides is not an aldose? A) crythrose B) fructose C) glucose D) glyceraldehyde E) iribose 2. When two carbohydrates are epimers: A) one is a pyrano…
Which of the following most accurately describes a mechanism bywhich enzymes cat
Which of the following most accurately describes a mechanism bywhich enzymes catalyze reactions involving multiple substrates? a. In doubledisplacement reactions, both substrates …
Which of the following most accurately describes thedistribution of electron den
Which of the following most accurately describes thedistribution of electron density in ozone? a. looks like a bean evenly distributed on both sidesstarting with red, then yellow,…
Which of the following names could not be or is not correct (if any)? Why? cupro
Which of the following names could not be or is not correct (if any)? Why? cuprous(II) sulfate magnesium hex aqua platinum(lI) mercury(I) dioxide potassium hex cynocephali(ll) pot…
Which of the following neutral elements has the same electron configuration as t
Which of the following neutral elements has the same electron configuration as the bromide ion, Br? D.krypton Part A Use the periodic table to determine the electron configuration…
Which of the following nucleophiles adds preferentially in a 1,2-manner (as oppo
Which of the following nucleophiles adds preferentially in a 1,2-manner (as opposed to 1,4- addition) to unsaturated ketones? k. Ph2CuLi . SH m. PhMgBr n. PhCOCH2 o. PPh What is t…
Which of the following objects are chiral? A basketball A fork A wine glass A go
Which of the following objects are chiral? A basketball A fork A wine glass A golf club A spiral staircase A snowflake Which of the following compounds are chiral? Draw them, and …
Which of the following observations give evidence that a crystal is a hydrate? O
Which of the following observations give evidence that a crystal is a hydrate? One or more answers may be correct. Heating the crystal results in a decrease in mass which matches …
Which of the following observations give evidence that a crystal is a hydrate? O
Which of the following observations give evidence that a crystal is a hydrate? One or more answers may be correct. Recalculating the percent yield of the hydrated crystals using t…
Which of the following observations give evidence that a crystal is a hydrate? O
Which of the following observations give evidence that a crystal is a hydrate? One or more answers may be correct The number of water molecules in the hydrated crystals is calcula…
Which of the following occurs when HCl is added to a budder containing (CH 3 ) 3
Which of the following occurs when HCl is added to a budder containing (CH3)3N and (CH3)3NH+? The concentraion of (CH3)3N will increase. The concentraion of (CH3)3NH+ will decre…
Which of the following occurs when the weak base ammonia, NH 3 , is dissolved in
Which of the following occurs when the weak base ammonia, NH3, is dissolved in water? a very small number of ammonia molecules break up a very small number of water molecules take…
Which of the following ofganic compound has he weakest conjugate base? Rank the
Which of the following ofganic compound has he weakest conjugate base? Rank the following hydrogen atoms from highest to in acuity m the structure shown below The most stable conf…
Which of the following options are required to increase the percent yield of the
Which of the following options are required to increase the percent yield of the reaction of dehydration of an alcohol to form an alkene? Choose all that apply. 1- Removing the pr…
Which of the following options correctly describe physical and chemical properti
Which of the following options correctly describe physical and chemical properties? Select all that apply -A phase change always occurs when a physical property is measured? -When…
Which of the following options correctly describe physical and chemical properti
Which of the following options correctly describe physical and chemical properties? Select all that apply -A phase change always occurs when a physical property is measured? -When…
Which of the following options correctly describe physical and chemical properti
Which of the following options correctly describe physical and chemical properties? Select all that apply -A phase change always occurs when a physical property is measured? -When…
Which of the following options correctly describes \"effusion\" and \"diffusion\
Which of the following options correctly describes "effusion" and "diffusion"? Diffusion is the process by which a gas escapes through a tiny hole to a region of lower pressure Ef…
Which of the following orbital diagram is incorrect because it violates Hund\'s
Which of the following orbital diagram is incorrect because it violates Hund's rule? Which of the following best represents the reaction between hydrochloric acid and sodium hydro…
Which of the following organic compounds is a product that results from a reacti
Which of the following organic compounds is a product that results from a reaction between carboxylic acid derivative and an ammonia or amine? a. acid chloride b. acid a…
Which of the following organic compounds is a product that results from a reacti
Which of the following organic compounds is a product that results from a reaction between carboxylic acid derivative and an ammonia or amine? a. acid chloride b. acid a…
Which of the following organic compounds is the least soluble in water? a) CH3CO
Which of the following organic compounds is the least soluble in water? a) CH3COOH, ethanoic acid b)C6H12O6, glucose c)CH3CH2CH2NH2, propyl amine d)C5H12, pentane e)CH3OH, methano…
Which of the following oxidants will convert a primary alcohol to an aldehyde? s
Which of the following oxidants will convert a primary alcohol to an aldehyde? sodium dichromate /sulfuric acid copper oxide 3 & 4 3 2, 3, & 4 1,2, 3, & 4 none of the …
Which of the following oxidants will convert a primary alcohol to an aldehyde? s
Which of the following oxidants will convert a primary alcohol to an aldehyde? sodium dichromate /sulfuric acid copper oxide 3 & 4 3 2, 3, & 4 1,2, 3, & 4 none of the …
Which of the following oxidants will convert a primary alcohol to an aldehyde? s
Which of the following oxidants will convert a primary alcohol to an aldehyde? sodium dichromate /sulfuric acid copper oxide 3 & 4 3 2, 3, & 4 1,2, 3, & 4 none of the …
Which of the following oxidants will convert a primary alcohol to an aldehyde? s
Which of the following oxidants will convert a primary alcohol to an aldehyde? sodium dichromate /sulfuric acid copper oxide 3 & 4 3 2, 3, & 4 1,2, 3, & 4 none of the …
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