When the Mixture of Molecules Shown in the Molecular-Level Image

question 64

Multiple Choice

When the mixture of molecules shown in the molecular-level image undergoes complete reaction, all of these molecules are converted to products. Which of the following reactions could this represent?

• A)N₂ + O₂ → 2NO
• B)N₂ + 2Cl₂ → N₂Cl₄
• C)N₂ + 2O₂ → 2NO₂
• D)N₂ + 3H₂ → 2NH₃
• E)N₂ + 3O₂ → 2NO₃

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Definitions:

Back Weld

A welding technique where a weld is applied on the opposite side of a previously welded joint to ensure strength and integrity.

Backing Weld

A type of weld applied to the root of a joint for ensuring complete root penetration and to support molten weld metal.

Double-Groove Joint

A type of joint where two parallel grooves are made on each piece of material to be joined, typically used in welding for increased strength.