Which of the following species are capable of hydrogen bonding among themselves? Select all that apply or None of the above. DHCOOH □ H₂O ONH, DC₂H4 None of the above X

Е. NaCN Br Acetone

24.34 Draw the product of each of the following reactions. piease show Allarrtw pasheng wedranons

H2O H3O*

Figure 11-5 A. 1) Hg(0Ac)₂, H₂O B. 1) BH 3 C. D. 2) Na B H4 2) H₂O₂, OH, H₂O 2) OH, DMF ) 1) H Br 1) Hg (0Ac) ₂, H₂O H Br → 3) HBr 3) Ts Cl 2) Brz 3) TSCI ) Br H₂ SO4 4) Br¯ 4) HBr

CONCLUSIONS: In general, the boiling points of compounds increase down a group in the periodic table. The melting points and boiling points for the hydrogen compounds of group 6A elements are in the table below. Melting Point (°C) Boiling Point (°C) H₂O 0.0 100.0 H₂S -82.0 -60.0 H₂Se -65.7 -41.2 H₂Te -49.0 -2.2 Use your understanding of chemistry to propose an explanation for the anomaly in the trend for the hydrogen compounds of group 6A elements shown in the table.