Choose the Reaction That Illustrates ΔH° for Ca(NO₃)₂

question 56

Multiple Choice

Choose the reaction that illustrates ΔH° for Ca(NO₃) ₂.

• A) Ca(s) + N₂(g) + 3O₂(g) → Ca(NO₃)₂(s)
• B) Ca²⁺(aq) + 2NO₃^-(aq) → Ca(NO₃)₂(aq)
• C) Ca(s) + 2N(g) + 6O(g) → Ca(NO₃)₂(s)
• D) Ca(NO₃)₂(aq) → Ca²⁺(aq) + 2NO₃^-(aq)
• E) Ca(NO₃)₂(s) → Ca(s) + N₂(g) + 3O₂(g)

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