What Is One Method of Making "Laughing Gas

question 30

Multiple Choice

What is one method of making "laughing gas"?

• A)NH₄NO₃(s)+ heat → N₂O(g)+ 2 H₂O(l)
• B)3 Cu(s)+ 2 NO₃^-(aq)+ 8 H⁺(aq)→ 3 Cu²⁺(aq)+ 2 NO(g)+ 4 H₂O(l)
• C)Cu(s)+ 2 NO₃^-(aq)+ 4 H⁺(aq)→ Cu²⁺(aq)+ 2 NO₂(g)+ 2 H₂O(l)
• D)2 NO(g)+ O₂(g)→ 2 NO₂(g)

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A profit that results from a favorable change in exchange rates affecting the value of investments held in foreign currencies.

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A loss resulting from holding foreign currencies or foreign currency transactions when the exchange rate moves unfavorably.