Consider the following information. The lattice energy of KCl is Δ H lattice = − 701 kJ/mol. The enthalpy of sublimation of K is Δ H sub = 89.0 kJ/mol. The first ionization energy of K is IE 1 = 419 kJ/mol. The electron affinity of Cl is Δ H EA = − 349 kJ/mol. The bond energy of Cl 2 is BE = 243 kJ/mol. Determine the enthalpy of formation, Δ H f , for KCl ( s ) . Δ H f = kJ/mol

the energy to form plasma comes from heat or electricity in the atmosphere!

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each  column  of the  table  is called a group. elements in a group share similar properties. groups are  read  from  top  to  bottom. metal. metalloid. nonmetal. solid. liquid. gas. fe. hg. o.  2. 3. 4. 5. 6. 7. 8. 9.  2. beryllium. 9.012. 4.  sodium. 22.990.  11. 3.  magnesium. 24.305.  12.  potassium. 39.098.  19. 4.  calcium. 40.078.  20. i guess  i  

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