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The Lattice Enthalpy of Calcium Oxide Is the Energy Change →\rarr

Question 33

Multiple Choice

The lattice enthalpy of calcium oxide is the energy change for the reaction


A) CaO(s) →\rarr Ca(g) + O(g)
B) CaO(s) →\rarr Ca(g) + ½O2(g)
C) Ca(g) + O(g) →\rarr CaO(g)
D) CaO(s) →\rarr Ca2+(g) + O2-(g)
E) Ca(s) + ½O2(g) →\rarr CaO(s)

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