Watch the video on electron affinity and identify which of the following statements matches each reaction. Drag the appropriate items to their respective bins.

(H2 + F2 --> 2 HF) Given the average bond energies for this reaction, calculate AH for the following reaction: [H-H = 432 KJ/mol], [F-F = 154 %3D KJ/mol], [H-F = 565 KJ/mol] * %3D -21 KJ 21 KJ 544 KJ -544 KJ 1151 KJ

Consider the following data for nickel: g 58.693 mol atomic mass electronegativity 1.91 kJ 112. mol electron affinity kJ 737.1 mol ionization energy kJ 17.2 mol heat of fusion You may find additional useful data in the ALEKS Data tab. Does the following reaction absorb or release energy? release absorb (1) Ni(g) + e → Ni (g) Can't be decided with the data given. Is it possible to calculate the amount of energy absorbed or released by reaction (1) using only the data above? yes no If you answered yes to the previous question, enter the I kJ/mol amount of energy absorbed or released by reaction (1): Does the following reaction absorb or release energy? release absorb (2) Ni(g) → Ni (g) + e Can't be decided with the data given. yes Is it possible to calculate the amount of energy absorbed or released by reaction (2) using only the data above? no If you answered yes to the previous question, enter the amount of energy absorbed or released by reaction (2): O kJ/mol

The formation of KCl(s) from K(s) and Cl2(g) is an exothermic process (DHf for KCl(s) is negative). Considering the steps involved in the Born-Habor cycle, which of the following steps contributes to the stability of KCl(s)? Dissociation of Cl2(g) Electron gain by Cl(g) Ionization of K(g) Sublimation of K(s)