Of the Following Four Reactions, How Many Are Oxidation-Reduction Reactions $\rightarrow$

question 73

Multiple Choice

Of the following four reactions, how many are oxidation-reduction reactions? NaOH + HCl $\rightarrow$ NaCl + H₂O
Cu + 2AgNO₃ $\rightarrow$ 2Ag + Cu(NO₃) ₂
Mg(OH) ₂ $\rightarrow$ MgO + H₂O
N₂ + 3H₂ $\rightarrow$ 2NH₃

• A) 0
• B) 1
• C) 2
• D) 3
• E) 4

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Definitions:

Sarcomere

A sarcomere is the functional unit of a muscle fiber, comprising the filaments actin and myosin, responsible for muscle contraction.

Skeletal Muscle Tissue

A type of muscular tissue attached to bones, responsible for voluntary movements of the body through contraction and relaxation.

Striated

Having a series of ridges, stripes, or lines, often related to muscle tissue that appears striped under a microscope due to the arrangement of myofilaments.