How Many Oxygen Atoms Are There in 7

question 1

Multiple Choice

How many oxygen atoms are there in 7.00 g of sodium dichromate,Na₂Cr₂O₇?

• A)0.187 oxygen atoms
• B)2.30 × 10²¹ oxygen atoms
• C)1.60 × 10²² oxygen atoms
• D)1.13 × 10²³ oxygen atoms

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Definitions:

Sodium Channels

Integral membrane proteins that allow sodium ions to pass through the cell membrane, essential for the generation and transmission of electrical signals in neurons and muscle cells.

Hyperpolarization

An increase in a cell's membrane potential, making it more negative and reducing the likelihood of generating an action potential.

Cell Body

The spherical part of a neuron that contains the nucleus and connects to the dendrites and the axon, playing a crucial role in processing information.

Dorsal Root Ganglion

A cluster of nerve cell bodies (neurons) in a dorsal root of a spinal nerve.