One Form of Asbestos Called Chrysotile Is Considered to Be

question 35

Multiple Choice

One form of asbestos called chrysotile is considered to be a human carcinogen. Mass analysis reveals that it has the empirical formula Mg₃Si₂H₄O₉. If the molar mass is 554 g/mol, which molecular formula is correct?

• A) MgSiO₄(OH)₂
• B) Mg₂Si₄O₈(OH)₄
• C) Mg₃Si₂O₅(OH)₄
• D) Mg₆Si₄O₁₀(OH)₈
• E) Mg₉Si₆O₁₅(OH)₁₂

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Definitions:

Glycogen

A multi-branched polysaccharide of glucose that serves as a form of energy storage in animals and fungi; the primary storage form of glucose in the body.

Parasympathetic Stimulation

The activation of the parasympathetic nervous system, leading to responses such as decreased heart rate and increased digestive activity.

Insulin

A hormone produced by the pancreas that regulates blood glucose levels by facilitating the uptake of glucose into cells.

Reabsorbed

The process by which substances are taken back into the bloodstream from bodily fluids or tissues, typically referring to the action of the kidneys.