Which Equation Correctly Represents the Reaction Between Silica and Hydrofluoric

question 60

Multiple Choice

Which equation correctly represents the reaction between silica and hydrofluoric acid?

• A)SiCl₄ + 4HF → SiF₄ + 4HCl
• B)SiO₂ + 6HF → H₂SiF₆ + 2H₂O
• C)SiCl₂ + 2HF → SiF₂ + 2HCl
• D)SiH₄ + 4HF → SiF₄ + 4H₂
• E)none of the above

Understand the structure of muscle tissue and the organization into fascicles.

Know the biochemical basis of muscle energy storage and utilization.

Differentiate between the types of muscle tissue and their control mechanisms.

Recognize the symptoms and preventive measures for common muscle and neuromuscular diseases.

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Definitions:

Antagonist

A substance that acts against and blocks an action in pharmacology or a character who opposes the protagonist in literature.

Muscular Rigidity

A condition in which muscle tone is abnormally increased, leading to stiffness and resistance to movement.

Dopamine

A neurotransmitter involved in controlling the brain's reward and pleasure centers, as well as regulating movement and emotional responses.

Acetylcholine

A neurotransmitter in the body responsible for muscle activation and plays roles in arousal, attention, memory, and motivation.