A Molecule That Is Polar

question 113

Multiple Choice

A molecule that is polar:

• A) can form a hydrogen bond.
• B) must be ionic.
• C) has an unequal charge.
• D) is both A and C.

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Definitions:

Synovial Cavity

A fluid-filled space that exists between bones that are encapsulated by a synovial membrane, aiding in smooth movement of the joints.

Articular Surfaces

The surfaces of bones that come into contact with one another to form joints, often covered with cartilage to reduce friction.

Sesamoid Bone

A small, round bone embedded within a tendon; its primary function is to protect tendons and increase their mechanical advantage.

Shoulder

The region where the arm joins the torso, consisting of several joints and an ensemble of muscles and tendons that provide motion and stability.