Which of the Following Reactions Will Occur Spontaneously as Written

question 69

Multiple Choice

Which of the following reactions will occur spontaneously as written?

• A) 2Cr (s) + 3Fe²⁺ (s) - 3Fe (s) + 2Cr³⁺ (aq)
• B) Sn⁴⁺ (aq) + Fe²⁺ (s) - Sn²⁺ (aq) + Fe (s)
• C) 3Fe²⁺ (aq) + Cr³⁺ (aq) - Cr (s) + 3Fe³⁺ (aq)
• D) Sn²⁺ (aq) + Fe²⁺ (s) -Sn⁴⁺ (aq) + Fe³⁺ (aq)
• E) 2Cr³⁺ (aq) + 3Sn²⁺ (aq) - 3Sn⁴⁺ (aq) + 2Cr (s)

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Definitions:

Trapezius

A large superficial muscle that extends longitudinally from the occipital bone to the lower thoracic vertebrae and laterally to the spine of the scapula, involved in moving the shoulder and neck.

Pectoralis Major

A large muscle in the upper chest that performs functions related to the movement of the shoulder joint, including flexion, adduction, and medial rotation.

External Abdominal Oblique

A muscle located on the lateral and front sides of the abdomen, involved in rotating and bending the trunk.

Corrugator Supercilii

A small, narrow muscle close to the eyebrow, responsible for drawing the eyebrow downward and medially, creating frown lines on the forehead.