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

question 78

Multiple Choice

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

• A) Ba(s) + N₂(g) + 3 O₂(g) → Ba(NO₃)₂(s)
• B) Ba²⁺(aq) + 2 NO₃^-(aq) → Ba(NO₃)₂(aq)
• C) Ba(s) + 2 N(g) + 6 O(g) → Ba(NO₃)₂(s)
• D) Ba(NO₃)₂(aq) → Ba²⁺(aq) + 2 NO₃^-(aq)
• E) Ba(NO₃)₂(s) → Ba(s) + N₂(g) + 3 O₂(g)

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