In this task, you are given a sentence in the English language. Your job is to translate the English sentence into the Spanish language.

[Q]: Indicate the main etiological factor associated with acute pancreatitis
[A]: Señale cuál es el principal factor etiológico asociado a una pancreatitis aguda


[Q]: In the Second Order Nucleophilic Substitution (SN2) reactions, the most reactive substrates are
[A]: En las reacciones de Sustitución Nucleofílica de Segundo Orden (SN2) los sustratos más reactivos son los


[Q]: The first sound or heart tone is due to
[A]:
El primer ruido o tono cardiaco se debe