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43) Which of the following describes the reaction shown? CH-CH сн,сH,Br D) AH<0 and AS° <0...
+ + CH:CH Br heat Which of the following describes the reaction shown below? CH2=CH2 HBT A) AHº - AS = 0 B) AH° <0 and AS > 0 C) AH® <0 and AS < 0 D) AHⓇ >0 and AS'>0 E) AHⓇ>and AS < 0
1. Classify each reaction by type. +Br a. b. сH,CH,сHсH сн, Cн,CH3CHCHсн, он c. 2. Draw an energy diagram for a two- step reaction where the first step is endothermic, second is exothermic and overall is endothermic. The first step is rate limiting. Label reactants, products and intermediates 3. The treatment of t-butyl alcohol with HCl gives t-butyl chloride as shown below. When the [HCI] doubles the rate doubles. When the [alcohol] triples the rate is tripled. Write a rate...
11. Indicate the order of stability CH н сн. Br CH сH, На н н. Br H H н н" Br н H н н н' Br н A В C D 12. Which of the following structures does NOT have tetrahedral geometry around any of its central central atoms. Use resonance to help explain A. В. с. D. = NH2 13. Is it theoretically possible to separate the pair of compounds below by distillation? Explain briefly CH CHs Br...
Question 5 Predict the major product of the following reaction: B12 c . Сн, . + Enantiomer os CH3 Br + Enantiomer CH, > + Enantiomer H3CBG BI CH3
The exothermic reaction, A--> has AG<0. Which of the following statements are true AH<0 for the reaction AS must be greater than zero AS could be greater than or less than than zero the reaction is spontaneous in the reverse direction
What reagent conditions are needed to facilitate the reaction shown below? He ? scop + C OA. Heat (> 150 °C) 1. "OH, H20 OB. 2. H+ Oc. NaOCH,CH3, HOCH,CH; OD. LDA
34. Which molecule is the most reactive in an S,2 reaction? (A) CH,CH,CH,CI (в) CH,CH, CH, он (C) CH, CH. CH, Oть (D) CH,CH,CH,CN 35. Which halide readily undergoes BOTH displacement (5,2) and ionization (S,1) reactions? (B) CHs (A) Br Br (D) сн,Bг (C) Br 36. Which best describes the rate-limiting step in the S,1 mechanism? (B) -c-Br (A) (D) (C) CO Br 37. Which is the least nucleophilic? (в) (CH), С (A) (CH), NH (D) HC C: (C) CH,OH...
13 of 15 Kp = 1.73x10-5 for a reaction. Which of the following must be true? O AGⓇ<0 O AG°=0 O AG°>0 O AGº=1
NEED ANSWERS ASAP PLZ QUESTION 4 AH° = -560 kJ Look at this reaction: 2H2(g) + O2(g) --> 2H20(1) Which one of the following statements is true? O Heat is absorbed during the reaction O The reaction is endothermic O The enthalpy change is positive O This reaction is exothermic QUESTION 3 If AH = 25 J for a certain process, that process O releases heat O is exothermic. O is endothermic. O can't tell
Calculate AH for the following reaction using the given bond dissociation energies. >co,g)+2H,0(g) AH° (kJ/mol) CHg)20,g) Bond 142 О-О Н-О 459 С-Н 411 799 O O 498 С-О 358 Number ΔΗ. kJ/ mol This reaction is endothermic exothermic