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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Definitions:

Aortic Valve

A valve in the heart between the left ventricle and the aorta that prevents blood from flowing back into the heart.

Conducting System

A network of specialized cardiac muscle cells responsible for initiating and distributing the electrical impulses that stimulate heart contraction.

AV Valve

The atrioventricular (AV) valve regulates blood flow from the atria to the ventricles in the heart.

Bundle of His

A collection of heart muscle cells specialized for electrical conduction that transmits the electrical impulses from the AV node to the point of the apex of the fascicular branches.