Avobenzone Is an Active Ingredient in Some Common Sunscreens

question 27

Multiple Choice

Avobenzone is an active ingredient in some common sunscreens.Which of the following is the correct molecular formula for avobenzone?

• A)C₂₂O₂₂O₃
• B)C₂₀H₂₂O₃
• C)C₂₁H₂₃O₃
• D)C₂₀H₂₄O₃

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Definitions:

Meninges

Protective membranes covering the brain and spinal cord.

Dura Mater

The outermost and toughest of the three membranes covering the brain and spinal cord.

Radial Nerve

A nerve that extends down the arm and is responsible for extending the wrist and fingers.

Ulnar Nerve

A nerve running along the inner side of the arm and forearm, extending to the hand, responsible for movement and sensation.