One Mole Is Defined as ________

question 111

Multiple Choice

One mole is defined as ________

• A)the number of particles equal to the number of atoms in exactly 12 g of carbon-12.
• B)the number of particles equal to the number of atoms in exactly 16 g of oxygen-16.
• C)exactly 6.02 10²² particles.
• D)the number of particles equal to the number of atoms in exactly 1 g of hydrogen-1.
• E)the number of particles equal to the number of atoms in exactly 1 kg of carbon in a vault at the National Bureau of Standards.

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Definitions:

Biological Rhythm

Natural cycles of physical, emotional, or mental activity in living organisms, often synchronized with environmental factors like light and dark cycles.

Circadian Rhythm

The natural internal process that regulates the sleep-wake cycle and repeats roughly every 24 hours.

Sleep Cycle

A progression through several stages of sleep, including REM (rapid eye movement) and non-REM stages, typically recurring multiple times throughout a night's sleep.

Alpha Waves

Brainwaves that are present when a person is relaxed and calm but still awake, typically with closed eyes, indicative of a state of restful alertness.