Calculate the value of AH° for the reaction C2H6 + 2 Cl2 - C2H4Cl2 + 2 HCl given the bond energies (kJ/mol):
Bond
Bond Energy
432 kJ/mol H-H
C-H 314 kJ/mol
H-CI 427 kJ/mol
C-C 347 kJ/mol
Cl-Cl 243 kJ/mol
339 kJ/mol C-Cl

The drawing represents the movement of particles in a substance. what changes of state can this substance undergo

Amixture initially contains a, b, and c in the following concentrations: [a] = 0.300 m , [b] = 1.05 m , and [c] = 0.550 m . the following reaction occurs and equilibrium is established: a+2b⇌c at equilibrium, [a] = 0.140 m and [c] = 0.710 m . calculate the value of the equilibrium constant, kc.

Assuming complete dissociation of the solute, how many grams of kno3 must be added to 275 ml of water to produce a solution that freezes at -14.5 c? the freezing point for pure water is 0.0 c and k_f is equal to 1.86 c/m