Predict the Relationship Between the Lattice Energies (U) of KBr

question 78

Multiple Choice

Predict the relationship between the lattice energies (U) of KBr and CaO.

• A)U_CaO  4 U_KBr because the ionic charges are  2 and  2 and the distance between the ions is smaller.
• B)U_CaO  4 U_KBr because the ionic charges are  2 and  2 and the distance between the ions is larger..
• C)U_CaO  2 U_KBr because the ionic charges are  2 and  2 and the distance between the ions is smaller.
• D)U_CaO  4 U_KBr because the ionic charges are  2 and  2 and the distance between the ions is larger.
• E)U_CaO and U_KBr are about the same because the larger ionic charge is compensated by the larger distance between the ions.

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