(a) (HOCH,), CNH; (HOCH,), CNH, (b) HOCH, CH, N N CH, CH, SO, HOCH, CH, NN CH, CH, SO; H (e) O; SCH, CH, NN CH, CH, SO; H 0, SCH, CH, NN CH, CH, SO,

t- U- S- 요 s O NHẠCH3, H® NHE+₂, HⓇ CN Ⓒ ΝΗ, Η

Where c-h: 413, c=c: 614, o-h:467, c-c: 347, c-o:358

Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. substance A B с D H :0: H | || | H с C -C-H 174 H H H chemical symbol, chemical formula or Lewis structure H H H | | C I 1 I H H H (II | Ag - Ar - :O: -O-H boiling point (Choose one) (Choose one) ✓ (Choose one) (Choose one) ✓

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OCH3 NH₂ CH3- OH 1. CH₂MgBr 2. H3O+ NH AICI 3 CI .&M H ze bes AICI3 1. excess CH3l 2. Ag₂O, H₂O 3. heat heat 1. Br2, PBr3 2. H₂O Hg, Zn, HCI 1. KOH 2. CI 3. KOH, H₂O, heat CH3 blank 1 blank 2 blank 3 blank 4 blank 5 blank 6 blank 7 blank 8 blank 9 1. KOCH3 2. H₂O, H+, heat blank 10 O-+K OH OH CH3CH₂Br NH,NH2, KOH H+ H₂, Pd DMSO, (COCI) 2 Et3N NaNH, NH3 Ag(NH3)2* KOH, H₂O KOH, heat PPh3 excess CH3OH H+ blank 11 blank 12 blank 13 blank 15 blank 14 blank 16 blank 17 blank 18 blank 19

please. part D

Rank the elements or compounds in the table below in decreasing order of their boiling points. That is, choose 1 next to the substance with the highest boiling point, choose 2 next to the substance with the next highest boiling point, and so on. chemical symbol, substance chemical formula boiling point or Lewis structure H H H A H – C C - C -0 H (Choose one) ▼ | H H Ag (Choose one) В Ar |(Choose one) - H :0: H Н— С — С С — Н (Choose one) v H. ? :0 : I - O - T

The table below contains some mean bond energy data: Bond C-C 348 H-H N=N Mean bond energy /kJ mol| 436 944 (i) Balance the equation below for the formation of one mole of ammonia, NH3, from its elements. N2 + H2 NH3 AH = -38 kJmol" (ii)Use the data in the table above to calculate the bond energy of N - H bond in NH3 in the reaction given in (1) above. Comment on why the value obtained is referred to as 'mean bond enthalpy (ii) Use the equation below and data from the table to calculate a value for the C=C bond energy in ethene. Bond H-H C-H C-C 348 Mean bond energy /kJ mol 436 418 нн нн С—С + Н Нэнс- с н AH = -136 kJ mol нн н Ethene Ethane

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