How Many Lone Pairs of Electrons Need to Be Added

question 49

Multiple Choice

How many lone pairs of electrons need to be added to the Lewis structure of carbonic acid shown below?

• A)0
• B)3
• C)4
• D)6

---

Definitions:

Opponent-process Theory

A psychological and neurological model that explains how humans perceive colors as the brain processes signals from the eyes in an antagonistic manner.

Bipolar Cell

A type of neuron found in the retina that plays a role in the transmission of visual information from photoreceptors to ganglion cells.

Spontaneous Rate

In neuroscience, it refers to the baseline firing rate of a neuron when not being stimulated.

Trichromatic Theory

A theory of color vision stating that the human eye has three types of receptors with differing sensitivities to different light wavelengths.