Which of the Following Reactions Is Associated with the Lattice

question 7

Multiple Choice

Which of the following reactions is associated with the lattice energy of CaS (ΔH°_latt) ?

• A) Ca(s) + S(s) → CaS(s)
• B) CaS(s) → Ca(s) + S(s)
• C) Ca²⁺(aq) + S²⁻(aq) → CaS(s)
• D) Ca²⁺(g) + S²⁻(g) → CaS(s)
• E) CaS(s) → Ca²⁺(aq) + S²⁻(aq)

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A situation in competitive markets where all firms are making normal profits, and there is no incentive for market entry or exit.

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