Which Is a Spectator Ion from the Following Complete Ionic

question 109

Multiple Choice

Which is a spectator ion from the following complete ionic equation:
Ag⁺(aq) + NO₃^-(aq) + K⁺ (aq) + Br^-(aq) → AgBr(s) + K⁺(aq) + NO₃^- (aq)

• A)Ag⁺
• B)Br^-
• C)K⁺
• D)AgBr
• E)none of the above

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Definitions:

Muscle Fatigue

Muscle fatigue is the decline in ability of a muscle to generate force, often experienced after prolonged activity or strain.

Motor Units

A motor unit consists of a single motor neuron and all the muscle fibers it innervates, essential for muscle contraction.

All Or None

A principle stating that a neuron either fires with a full response or does not fire at all, depending on stimulus strength.

Contraction

The process in which a muscle becomes shorter and tighter, producing movement or exerting force.