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- According to the conventions above, what is the sign ( + or ) of the P.E. change (H) for Rxn 3?Using average bond enthalpies (linked above), estimate the enthalpy change for the following reaction: 2C0(g) + 02(g) 2CO2(g)Which of the following molecules is E configuration? HOH,C CH, HOH,C b. OMe NC CH, H3CO,C CH,Br H;CH,C CH,OH HOH;C CH CH3 a O b
- 2. Describe what orbitals make each bond in the following molecule, and identify each bond as o or . H H H I-N: H :0: || C I—Z: N H C=C-H1. CHǝMgBr A 2. H3O+ 1. KCN B 2. H3O+ 1. CH3Li C 2. H3O+ 1. (CH3)2CULI 2. H3O+ Done3. Draw the dash-wedge structure for the following molecules. 1 C₂H₂ C₂H₂ S H CH₂ 1 H Br H Cl * H H 4. Arrange the structures in the increasing order of stability CH₂ C₂H₂ C₂M₂ C₂H₂ H C₂H₂ *馬來西 H C₂H₂ H C₂H₂ CHy CH₂ IV || |||
- Identifique los pasos correctos para llevar a cabo la siguiente síntesis: =Q CI NO₂ Varios pasos O [1] HNO3/H2SO4, [2]CH3CH2C1, AIC13. [3] Cl2, FeCl3 O [1] HNO3/H2SO4, [2]CH3COCI, AIC13, [3] Cl2, FeCl3 O [1] CH3COCI, AIC13. [2] HNO3/H2SO4, [3] Zn(Hg), HC1, A, [4]C12, FeCl3 O [1] CH3COCI, AICI3, [2] Zn(Hg), HCI, A, [3]Cl2, FeCl3, [4] HNO3/H2SO4Isocyanic and cyanic acid are compounds that correspond to, respectively, the most stable Lewis electron dot structures for the molecular formula CHNO. Which of the following line structures could not represent isocyanic/acid? OA. +1 H-NEC-O: OB. +1 .. -1 H-CEN-O: OC. H-0-C=N: OD. -1 +1 .. :CEN-O-H N=C=o: H OE. « » 80 9. 10 delete UName ti.. organic compounds: structure name Он H H H Н— С — С — С — С — н | | || | н нн н CH, — сн,-сH, — С -ОН | н н H - C- C = 0 CH3 -
- Which of the following bond-line structures corresponds to the Newman projection shown? Br J... (A) Br I H. Br "Ω (B) CH3 CH3 CI H Br (C) Br CI (D)BDE - Bund dissociaton Greigy. (1.CHsBr BOE 219Kcalmon & CH3CH2 Br BOE 187 kealonor- Cは。-CH-Br BDI 164 kealmor 4. Cuz- - Br 149 Kealmoj BDE blhich of has bond u easier to break! 2. ohy?empt.php?attempt3D1101388&cmid%3D371560&page%3D2 Indicate the relationship between the following pair of compounds as same, structural isomers, geometrical isomers, resonance or different В. H,CO H3CO C. HN A BI 0 耳 !!!