How Many Atoms of Oxygen (O)are in HClO₄

question 66

Multiple Choice

How many atoms of Oxygen (O) are in HClO₄?

• A)5
• B)2
• C)3
• D)4
• E)1

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Definitions:

Antagonistic Muscles

Muscle pairs that work opposite each other; when one muscle contracts, the other relaxes, allowing movement in opposite directions.

CNS

The central nervous system, comprising the brain and the spinal cord.

Integration Center

A part of the nervous system, such as the brain or spinal cord, where information is processed and interpreted to initiate a response.

Reflex Arc

A neural pathway that controls an involuntary, rapid response to a stimulus.