The Dihydrogenphosphate Ion, H₂PO₄^-, Has Both a Conjugate Acid and a Conjugate

question 82

Multiple Choice

The dihydrogenphosphate ion, H₂PO₄^-, has both a conjugate acid and a conjugate base. These are, respectively,

• A) H₂PO₄^- and HPO₄^2-
• B) HPO₄^2- and H₃PO₄
• C) HPO₄^2- and PO₄^3-
• D) H₃PO₄ and PO₄^3-
• E) H₃PO₄ and HPO₄^2-

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Definitions:

Primary Colors

A set of colors from which all other colors can be obtained through mixing; in the context of additive color mixing – red, green, and blue; for subtractive mixing – cyan, magenta, and yellow.

Brightness Contrast

Brightness contrast involves the perception of an object's brightness being affected by the brightness of its surroundings, making it appear lighter or darker.

Lateral Inhibition

A neural mechanism that increases contrast and sharpness in visual and auditory pathways by inhibiting neighboring neurons' activity.

Physiological Mechanism

The processes and functions of an organism or its parts that contribute to the physical and chemical phenomena associated with life.