(g) () С—В 1-36 Supply the arrows to convert between resonance forms. and (b) (а) and...
For each pair of species, predict which is the stronger base? 5. Он or 1. 2. or В в NH NH (a) (b) 6. Rank the following from most stable to least stable. 2. 3. 4. Нас Н-с O H -н CH H CH,сH, сн,сн CH,CH 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 ÇF3 CF3 I II III
Which of the following structures is not a phosphoester? (А) NH (В) Ос "CH₂ НО-Р-он о О н ни ОН ОН ОН (c) NH (D) N О о" 9-ро Od-o CHz но-р-оснусн; H он Онон Select one (А)
1. Use VSEPR theory to predict the molecular geometry for each of the following molecules, indicate whether each bond in it is a a or m bond, and provide the hybridization scheme for each non-hydrogen atom а. Н.С %3 снCH %3D CH, b. (носн»),С(СH,)соон с. CH,соосH(CHә)сн — снс 3D ссн, e. (CH3),СHCH,CH(NH,)C0OH d. CH,онсH(NH,)соон 2. Write the resonance structures and resonance hybrid for each of the following ions. Use curved arrows to show the shifts in electrons. ь. CH3 d....
For each pair of species, predict which is the stronger base? 5. Он or 2. or HH 1. NH NH (b) 6. Rank the following from most stable to least stable. 4. 1. 2. 3. Н-с H H Н.с H -H H CH3 CH,сн, CH,сH CH,CH H 7. Which cation would be the most stable? А. В. C. D. What is the order of increasing contribution to the resonance hybrid? 8. CF3 Lnkentn CF3 CF3 Ш II I
choose correct answer. no explanation needed
QUESTION 21 luminosity b о в А км The figure above shows groups of stars on the H-R diagram, delineated broadly by groups (a) through (e). Which group represents stars that are hot and dim? a b OOooo QUESTION 22 luminosity b ов А F G KM The figure above shows groups of stars on the H-R diagram, delineated broadly by groups (a) through (e). Which group represents stars of the smallest radi? a...
QUESTION 15 Which of the following mechanisms for the base-catalyzed hydrolysis of ethyl acetate is correct? со: A We нс ТСІ G: осн. нс нсон, * осн B -: осн, со: . нус оҫн сн, н,со-сі нус, осн нсон, - осн, (осн. -н-осн D е H₂C a нска, нс OCH, нс оҫн, - OCH о А о в o С OD
Which solvent(s) listed below would be satisfactory in Snl reactions? 0 o Н;С CH; DMSO H3C Н;С CH3CH2OH H DMF I II III a. I only b. II only c. III only d. I and II Oe. I and III f. II and III Og. All of the above What two products are expected in the following reaction? CH3 HBT H H BI CH CH; CH BI H Br I II III H Br Br H CH; CH IV V...
COLUMNA 0 NO2 19 COLUMN B O + OH OH A) HAN AICI: 1) ch 2 BHA 3) H,09 B) YN B 1) My C) ОН 2) 2)CO2 3) H30 4) CH3OH D) 3) E) 0 OH H 1)DBAL-H 2)Ph PCH2 3) mCPBA 1) SOCI2 2CH.NH. pyridine 3) excess LAHA 4)H,0* F) 0 O 4) OH o G) excess HB H) 5) 1) 6) H30* Δ. Mglk J) 7) OH 0 2 1,0 hp question completion Status: Н. 6) Н...
What is the major product of the following reaction? Hy(excess) Lindlar's cat. A B D Ос B A D What is the major product of the following reaction? Cl2 Н,0 НО СІ. A \ Он С В с D CI CI ОН ОН Ов ОА D с What is the major product of the following reaction? CH3 нс Н сH,CH, NaNH2 DMSO Br А В CH3 CHCH3 9 CH3 с CH,CH H4C. D нс CH2CH3 CH3 "NH, нс Сн HECH...
b) CI d) He 2. Predict which of the following compounds are ionic and which are covalent, based on the location of their constituent atoms in the periodic table: (a) C1,CO (b) Mno (c) NCI, (d) CoBr (e) CaF (2) HI 3. Identify the more polar bond in each of the following pairs of bonds: (a) HF or HCI (b) NO or CO (C) SH or OH (d) PCI or SCI (e) CH or NH (1) SO or PO What...