Question

which of these accurately describes why an acid is strong? an acid is strong when it dissociates completely in water. an acids strength is due to the amount present in a solution. an acid becomes strong when it is mixed with a base. an acid is strong when it undergoes a reverse reaction.

Explanation:

Un ácido fuerte es aquel que se disocia completamente en agua, liberando iones hidrógeno ($H^+$). La fuerza de un ácido no depende de la cantidad presente en una solución (eso es concentración), ni de mezclarse con una base (eso es una reacción ácido - base) y tampoco de una reacción inversa.

Answer:

An acid is strong when it dissociates completely in water.