The Density of Mercury, the Only Metal to Exist as a Liquid

question 68

Multiple Choice

The density of mercury, the only metal to exist as a liquid at room temperature, is 13.6 g/cm³. What is that density in pounds per cubic inch?

• A)849 lb/in ³
• B)491 lb/in ³
• C)376 lb/in ³
• D)0.491 lb/in ³
• E)1.83 × 10 − 3 lb/in ³

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Definitions:

Neurotransmission

The process by which nerve cells communicate with each other through the exchange of chemical signals.

Neurons

Electrically excitable cells that are the basic units of the nervous system, responsible for receiving sensory input and transmitting motor commands.

Synapse

The junction between two neurons, where transfer of information from one neuron to another occurs.

Neuronal

Pertaining to neurons, which are the fundamental cells of the brain and nervous system responsible for processing and transmitting information.