chemistry

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which of the following steps in the formation of KCI releases energy?
A.K{solid} -> K{gas}
B.K {GAS} -> K+ {GAS} + e-
C.C1 {GAS} -> C1- {GAS}
D.C1 {GAS} + e- -> C1 - {GAS}
E. K+ {GAS} + C1- {GAS} -> KC1 {SOILD}
A. A
B. C
C. B AND A
D. D AND E

I will be happy to critique your thinking on this.

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