If CH₃NH₂ Is Added to Water, What Other Compound Could

question 109

Multiple Choice

If CH₃NH₂ is added to water, what other compound could also be added in order to make a buffered solution?

• A)H₂O
• B)NaOH
• C)CH₃NH₃Cl
• D)NaCH₃NH₂
• E)none of these is correct

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Definitions:

Circadian Rhythm

The internal biological clock that regulates the sleep-wake cycle and other physiological processes within approximately a 24-hour period.

Alpha Wave

A type of brain wave detected by electroencephalography (EEG) that indicates a state of physical and mental relaxation while being awake.

REM Rebound

The phenomenon where a person experiences increased amounts of REM sleep after being deprived of REM sleep in previous nights.

Sleep Spindles

Short bursts of brain activity that occur during stage 2 of the sleep cycle, associated with sleep maintenance and cognitive functions like learning and memory.