Start with the Skeleton Half-Reaction NO₃ ^- →NO₂

question 12

Multiple Choice

Start with the skeleton half-reaction NO₃ ^- →NO₂. When balanced in acid solution, what other species appear on the left side of the equation, in addition to NO₃ ^-?

• A) H₂O + 2 e ^-
• B) 2 H⁺ + e ^-
• C) H⁺ + 2 e ^-
• D) 2 H⁺
• E) none of these

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Definitions:

Motion

The change in position of an object with respect to time and its reference point.

Pupil

Adjustable opening that allows light into a camera eye.

Opening

Creating a gap or space, providing access or an entrance to something.

Center

Often used in various contexts to denote the middle point of something; in geometry, it refers to the point equidistant from all points on the circumference of a circle or surface of a sphere.